Where Chapter 15 picks up

Chapters 13, 14 and 15 read well together. Chapter 13 told apart the field (the body and everything in it) and the knower of the field. Chapter 14 named the three gunas — sattva, rajas and tamas (clarity, drive and dullness) — the strands of nature that bind the embodied self. Chapter 15 takes one more step: it names the one who stands above both the field and the knower.

Near its close, Chapter 14 makes a promise. The one who serves the Lord “with unwavering devotion” goes beyond the gunas (14.26). Chapter 15 begins by drawing what that person goes beyond — the whole of worldly life, pictured as a single tree.

The chapter’s title is puruṣhottama-yoga. puruṣha means a person, a conscious being; uttama means the highest. puruṣhottama is the highest Person. The name comes from verse 15.18, near the end, where Krishna gives it to himself.

At twenty verses, it shares the place of shortest chapter with Chapter 12. In many ashrams it is chanted before meals. This guide reads it slowly, one image at a time. To follow the Sanskrit as you go, open Chapter 15 verse by verse.

The tree with its roots above (15.1–3)

The chapter opens with no question from Arjuna. Krishna simply begins. “They (the wise) speak of the indestructible peepul tree, with its roots above and branches below, whose leaves are the meters or hymns; he who knows it is a knower of the Vedas” (15.1). In Sanskrit: ūrdhva-mūlam adhaḥ-śhākham aśhvatthaṁ. ūrdhva is above, mūla is root, adhaḥ is below, śhākhā is branch. The aśhvattha is the peepul, the sacred fig.

The image is older than the Gita. The Katha Upanishad pictures the same eternal Ashvattha with its “root above and its branches below” (Katha 2.3.1). The Gita takes it up and explains it branch by branch.

Why upside down? A tree draws its life from its root. This tree’s root is above — in its source, beyond the world — and its branches spread down into the world we live in. Two of the great commentators, Shankara and Ramanuja, name that source differently. Shankara reads the root above as Brahman, the highest reality, together with its power of appearance. Ramanuja reads it as the creator Brahmā, who sits above the seven worlds. Both readings agree on the shape: the tree hangs from something higher than itself.

Its leaves are chhandānsi — the meters, the Vedic hymns. A tree’s leaves shelter it and keep it growing. The hymns of the ritual portion of the Veda do the same for this tree: they promise its fruits. Chapter 2 made the same point when it said, “The Vedas deal with the three attributes” (2.45).

Then the branches. “Its branches spread below and above, nourished by the Gunas; its buds are sense-objects, and its roots stretch forth below in the world of men, originating action” (15.2). guṇa-pravṛiddhā — grown fat on the gunas. viṣhaya-pravālāḥ — its buds, its new shoots, are the objects of the senses. And it has a second set of roots, running down into the human world: karmānubandhīni, binding by action. Here is Chapter 14’s map, drawn as a living thing. The gunas feed the tree; every act we do out of attachment sends down another root.

“Its form is not perceived here as such, nor its end, origin, foundation, or resting place; having cut asunder this firmly rooted peepul tree with the strong axe of non-attachment” (15.3). From inside the tree, nobody sees the whole tree. Nobody sees where it begins or ends. And yet it can be cut — asaṅga-śhastreṇa dṛiḍhena, with the strong weapon of non-attachment.

Notice what the axe is. It is not running away from the world, and not a new kind of action. It is asaṅga, not clinging. That is Chapter 2’s teaching and Chapter 3’s, in a single image: the root that binds is attachment, so the axe that frees is its absence.

Past the cut: the goal and the light (15.4–6)

What then? “Then, that goal should be sought for, to which, having gone, none returns again. I seek refuge in that Primeval Purusha, from whence streamed forth the ancient activity or energy” (15.4). Cutting the tree is not the end. It clears the way to look for the source the tree hung from.

The second sentence is a prayer. Krishna gives Arjuna the words to say: tam eva chādyaṁ puruṣhaṁ prapadye — I take refuge in that first Person. Taking refuge, prapatti, is how the seeker turns from the tree to its root.

Who reaches it? “Free from pride and delusion, victorious over the evil of attachment, dwelling constantly in the Self, their desires having completely turned away, freed from the pairs of opposites known as pleasure and pain, they, the undeluded, reach the eternal goal” (15.5). Read it as a list of the tree’s roots, each one cut: pride, delusion, attachment, desire, and the pairs of opposites. dvandva is a pair — heat and cold, pleasure and pain — the swing that keeps us clinging to one side of it.

Then the goal itself. “Neither does the sun illuminate there, nor the moon, nor the fire; having gone there, they do not return; that is My supreme abode” (15.6). This echoes Chapter 8 almost word for word: “Those who reach It do not return (to this Samsara). That is My supreme abode (place or state)” (8.21) — saṁsāra being the round of birth and death. The light there does not come from the sun, the moon or the fire — keep this verse in mind for “The light in the sun, the fire in the body” below.

The portion that travels (15.7–11)

Now Krishna turns from the world to the self that lives in it. “An eternal portion of Myself having become a living soul in the world of life, draws to itself the five senses, with the mind as the sixth, abiding in Nature” (15.7). In Sanskrit: mamaivānśho jīva-loke jīva-bhūtaḥ sanātanaḥ. aṁśa is a part, a portion. jīva is the living being.

This is one of the verses on which the schools of Vedanta — the schools of thought built on the Upanishads — divide most clearly, so it is worth saying how they read it. For Shankara (Advaita, “non-dual”), the portion is a portion only as it appears — like the space inside a pot, which seems to be a part of the open sky but is the same sky. For Ramanuja (Vishishtadvaita, “qualified non-dual”), the self is a real and eternal part of the Lord. For the Dvaita (“dual”) school of Madhva, the self is a distinct, dependent part that never becomes the Lord, even in freedom. The Gita’s words support a reading in each school. A teacher of one school will read the verse one way, and that is the tradition working as it should — not one of them being careless.

The portion draws to itself the senses and the mind, and they travel with it. “When the Lord, as the individual soul, obtains a body and when He leaves it, He takes these with Him, just as the wind takes the scents from their seats (flowers, etc.)” (15.8). Who is “the Lord” (īśhvaraḥ) here? Shankara and Ramanuja read it as the self, master of its body and senses, which carries the senses and mind onward. Madhva reads it as the Lord himself, who carries them with the self. The wind is not the scent, and it does not keep the flower. It carries the fragrance onward. So the self leaves a body and carries the senses and the mind in subtle form — what later Vedanta calls the subtle body — to the next. Chapter 2 gave the same truth another image: “Just as a man casts off worn-out clothes and puts on new ones, so too the embodied Self casts off worn-out bodies and enters others that are new” (2.22).

“Presiding over the ears, eyes, touch, taste, smell, and mind, it enjoys the objects of the senses” (15.9). The senses do not see or hear by themselves; something presides over them.

Why then do so few notice it? The next two verses keep the word “Him” for the one who departs, stays and enjoys; Shankara and Ramanuja take it as the self. “The deluded do not see Him who departs, stays, and enjoys; but those who possess the eye of knowledge behold Him” (15.10). jñāna-chakṣhuṣhaḥ — those with the eye of knowledge. And effort alone is not enough: “The yogis striving for perfection behold Him dwelling in the Self; but, the unrefined and unintelligent, even though striving, do not see Him” (15.11) — “the Self” here being one’s own inner being. The difference is not how hard one tries but what one has made ready — a mind that has been refined. That is why the axe of non-attachment comes first.

The light in the sun, the fire in the body (15.12–15)

Next Krishna shows where he is found in the world we already know. “That light which resides in the sun, illuminating the whole world; that which is in the moon and in the fire—know that light to be Mine” (15.12). Set this beside 15.6. The sun, moon and fire do not light the supreme abode. But their own light is his. The lamps of this world are lit from the source they cannot light.

“Permeating the earth, I support all beings with My energy; and having become the watery moon, I nourish all herbs” (15.13). The Sanskrit word is soma: the moon, in the old Indian picture of the world, is the store of the juice, rasa, that makes plants grow. The verse does not ask us to adopt that picture as science; it asks us to see one power behind both the ground that holds us and the plants that feed us.

Then the food reaches the body. “Having become the fire Vaisvanara, I abide in the bodies of living beings and, associated with the Prana and the Apana, digest the fourfold food” (15.14). vaiśhvānara is the fire of digestion. prāṇa and apāna are the in-breath and the out-breath, the life-currents. The “fourfold food” is food in its four kinds — Shankara names them as what is chewed, what is swallowed, what is sucked and what is licked; Ramanuja’s list has what is drunk in place of what is swallowed. Even digestion is the Lord at work.

Last, the heart. “And I am seated in the hearts of all; from Me come memory and knowledge, as well as their absence. I am verily That which has to be known by all the Vedas; I am indeed the author of the Vedanta and the knower of the Vedas” (15.15). Chapter 10 said it too: “I am the Self, O Gudakesa, seated in the hearts of all beings” (10.20). And Chapter 13: the Light of all lights is “seated in the hearts of all” (13.17). Our 18-evening Gita path gives 15.15 as its verse for evening 15, “Seated in every heart”.

Two words in 15.15 deserve a pause. apohana is the loss, the taking away — of memory and of knowledge. Even forgetting is not outside him. And vedānta-kṛit: the author of the Vedanta, the end and summit of the Veda. The tree of 15.1 had the hymns for its leaves; here Krishna names himself as the one the whole Veda is about.

The three Purushas (15.16–18)

The chapter ends with its most famous teaching. “Two Purushas there are in this world: the perishable and the imperishable. All beings are perishable, and the Kutastha—the unchanging—is called the imperishable” (15.16). kṣhara is perishable, that which wastes away; akṣhara is imperishable. kūṭa-stha is often explained as “standing like an anvil” — unmoved while everything is hammered on it.

“But distinct is the Supreme Purusha, called the highest Self, indestructible and Lord, who pervades the three worlds and sustains them” (15.17). uttamaḥ puruṣhas tv anyaḥ — but the highest Person is other. He is the paramātmā, the highest Self.

“As I transcend the perishable and am even higher than the imperishable, I am declared to be the highest Purusha in the world and in the Vedas” (15.18). Here the chapter’s name appears: puruṣhottamaḥ.

The schools agree that the perishable is what is born and dies, and that the highest Person is the Lord beyond both. (Shankara counts every changing thing as the perishable; Ramanuja and Madhva mean the embodied beings.) The schools differ on the second — who or what the imperishable, the kūṭastha, is. Shankara reads it as the Lord’s power of appearance, māyā, the unchanging seed from which the perishable world grows. Ramanuja reads it as the self freed from the body, unchanging because it no longer takes birth. Madhva reads it as prakṛti, nature (the material source of the world), in her conscious form — Lakshmi, the Lord’s eternal consort, who never perishes. Each reading keeps the Gita’s point: there is something unchanging in this world, and the Lord is higher even than that.

One way to picture the three against the tree: the tree, with all its branches, is the perishable; the highest Person is “that Primeval Purusha” the seeker takes refuge in (15.4), from whom the tree’s ancient activity streamed forth; and the imperishable stands between them, read as each school reads it.

“This most secret science” (15.19–20)

What follows from knowing this? “He who, undeluded, knows Me as the highest Purusha, he, knowing all, worships Me with his whole being (heart), O Arjuna” (15.19). sarva-bhāvena — with every part of oneself. In this chapter, knowing the Lord and worshipping him are not two paths. Knowing him truly is the beginning of worship.

“Thus, I have imparted to you this most secret science, O sinless one; by knowing this, one becomes wise, and all their duties are accomplished, O Arjuna” (15.20). guhyatamaṁ śhāstram — the most secret teaching. Chapter 9 opened with the same word, guhyatamaṁ, “the greatest secret” (9.1), and called its teaching the royal secret (9.2). Here Krishna gives the same word to the teaching of the three Purushas.

kṛita-kṛityaḥ: one whose work is done. Not one who has stopped acting — the Gita never asks that — but one for whom nothing remains that must be done to be free.

How to use Chapter 15

Chapter 15 is short enough to carry through a day. Here is one way to use it, in two moments that already come every day.

Before a meal, remember 15.14. Before you eat, read the line “Having become the fire Vaisvanara, I abide in the bodies of living beings…” once, slowly. Say it in Sanskrit if you know it — ahaṁ vaiśhvānaro bhūtvā — or in your own language. Eating stops being only fuel; it becomes the place where the Lord is at work in the body.

At the end of the day, look at the tree. Ask one question of 15.2: where did I send down a new root today — a craving fed, a grudge kept, a pleasure I am now waiting to repeat? Do not judge it. Name it, and name the axe: non-attachment, asaṅga (15.3). One root noticed is enough for one evening.

Once a week, read the whole chapter on the Chapter 15 page. Twenty verses take a few minutes.

If a verse stops you — the “portion” of 15.7, or the imperishable of 15.16 — bring it to Acharya Ji. Ask how your own tradition reads it, and where to read next.

Where to go from here

The short version, if you take nothing else from Chapter 15: worldly life is a tree that hangs from a root above and grows new roots wherever we cling, the axe that frees us is non-attachment, and the one we take refuge in is the highest Person, beyond the perishable and higher even than the imperishable.

Read Chapter 16 next. Chapter 15 named what to cut; Chapter 16 names the traits that free and the traits that bind — “The divine nature is deemed conducive to liberation, and the demonic to bondage” (16.5) — and the “three gates” of lust, anger and greed (16.21).