In the previous śloka, Bhagavān introduced a reality beyond the manifest universe and its unmanifest material cause. That reality is pure consciousness, unaffected by creation and dissolution.

Now He reveals why this reality is the highest spiritual goal and explains what it means to attain it.

The central teaching is that Brahman is not a distant destination. Attaining Brahman means recognizing through knowledge the reality that has always been our own essential nature.

1. Akṣara — the imperishable reality

Bhagavān calls this higher unmanifest reality akṣara [imperishable].

It is not māyā, the unmanifest material cause into which the universe resolves during Brahmā's night. It is pure consciousness, beyond both manifest and unmanifest matter.

Something may last for millions or billions of years and still belong to time. Even Brahmā's extraordinarily long lifespan has a limit.

Brahman is different. It is not something that survives for an enormous duration within time. It is timeless—never subject to the passage of time or the destruction that affects material things.

That is the significance of akṣara in this teaching.

2. Why is Brahman the supreme goal?

Bhagavān describes Brahman as paramāṃ gatim [the highest goal].

Ordinarily, a goal means acquiring something we do not possess or reaching a place where we are not presently located. We seek qualifications, possessions, experiences, or destinations.

Such attainments may be valuable, but they remain within time. A possession can be lost, a pleasant experience can end, and a destination remains a location within space.

Even the attainment of a celestial world does not, by itself, establish freedom from all limitations.

Therefore, the highest goal cannot merely be another place, however wonderful or long-lasting.

Brahman alone is limitless. Unlike finite objects and destinations, it is not restricted by space, time, or change.

3. Attainment without travelling

How can we attain something that is not located elsewhere?

Suppose someone is frantically searching for spectacles that are already resting on their forehead. The person looks through drawers, checks the desk, and searches different rooms.

Finally, someone points out where the spectacles are.

The spectacles have not travelled from somewhere else. They were already present. The person only needed to recognize that fact.

This is a limited analogy, because Brahman is not a physical object.

But it illustrates an important distinction: acquiring something new is different from discovering what was never absent.

Brahman is not separated from us by geographical distance. It is the consciousness that is our own essential nature.

The problem is ajñānam [ignorance]—the mistaken understanding that Brahman is elsewhere or separate from us.

Therefore, brahma-prāpti [attainment of Brahman] takes place through knowledge, not through physical movement.

4. Knowledge brings liberation

Bhagavān says yaṃ prāpya na nivartante [having attained which, they do not return].

This describes mokṣa [liberation], freedom from the recurring cycle of birth and death.

In the earlier ślokas, Bhagavān explained how the same jīvas repeatedly return according to their accumulated karma. Their continued involvement in the cycle is associated with ignorance and bondage.

Knowledge of Brahman removes the fundamental ignorance responsible for that bondage.

It does not produce a new Brahman, create a new Self, or transport consciousness to another part of the universe.

Rather, it reveals that limitless consciousness is our essential nature.

That recognition is liberation, and therefore it is described as the attainment from which there is no return to bondage.

5. Bhagavān's supreme dhāma

The śloka concludes with tad dhāma paramaṃ mama [that is My supreme abode].

The word dhāma can ordinarily mean an abode or dwelling place. But in this context, it is understood as svarūpa [essential nature].

Bhagavān is not merely pointing toward a physical residence situated somewhere in the universe. His supreme nature is Brahman, limitless consciousness beyond space and time.

Devotional worship of Kṛṣṇa, Rāma, and other divine forms remains valuable in preparing the mind for spiritual understanding. But His ultimate nature cannot be limited to a particular form or location.

The highest goal is to recognize one's essential oneness with that reality.

Śloka 8.21 teaches that the timeless consciousness introduced in 8.20 is the imperishable Brahman and the supreme goal. Its attainment does not require travelling to a distant world; it requires knowledge that removes the mistaken belief of separation. This recognition brings liberation from rebirth. Bhagavān's supreme dhāma is therefore His own limitless nature, not merely a place within creation.