Eternity is a Choice

Anyone, regardless of his beliefs and convictions, can experience that he is a constant or eternal observer of existence.

Krishna says:

As the embodied soul continuously passes, in this body, from boyhood to youth to old age, the soul similarly passes into another body at death. A sober person is not bewildered by such a change. (Bg. 2.13)

What Krishna is saying here, is that one's body changes all the time from childhood, to youth, to old age. But the self or the I within, remains constant. One's mind and intelligence change, sure. You are are supposed to grow wiser with age. One's thoughts, feelings, will-power, and convictions change as time progresses.

But it is the same I-feeling, who experience all these changes. It is the same observer. The person stays the same despite the altercations in matter.

That is the eternal soul. It is the same person, or the same soul who sits in a child's body as the one who sits in the old man's body. The person didn't change, in the sense that he is the same observer. His thoughts and feelings and intelligence changed, but he remained the same soul. In this way anyone can experience his own eternality.

It's a question of absorption - either one is absorped in matter, which is in constant change. One is absorped in his thoughts, feelings, and will. Or one is absorped in one's eternal self. That means, one is absorped in observing one's thoughts, feelings, and will. IOW one is absorped in his own consciousness.

That is a choice one has. And one's choice will be determined by the way one is controlled by matter. When one's choice is motivated by the desire to become FREE from matter, then one begins his spiritual journey back home, back to Godhead.

Krishna says:

A person who is not disturbed by the incessant flow of desires - that enter like rivers into the ocean, which is ever being filled but is always still - can alone achieve peace, and not the man who strives to satisfy such desires. (Bg 2.70)

A person who has given up all desires for sense gratification, who lives free from desires, who has given up all sense of proprietorship and is devoid of false ego - he alone can attain real peace. (Bg 2.71)

That is the way of the spiritual and godly life, after attaining which a man is not bewildered. If one is thus situated even at the hour of death, one can enter into the kingdom of God. (Bg 2.72)