Atman(soul or consciousness, the innermost self cannot be attained by one who is without strength or earnestness or without the receptiveness and courage to accept the truth and reject the untruth. But if a serious seeker strives by means of inquiry, analysis and reasoning on the true base, he will be able to realize it.
By realizing Atman, the one become satisfied with that Knowledge. He establishes in the true self, and he is free from experiencing the duality as reality and he is in non dual tranquility. Such seeker ever devoted to the Self, behold everywhere the Atman.
Having well ascertained the Self, the goal of the Self- knowledge or Brahma Gnana or Atma Gnana and having perfect understanding, the seekers, never relaxing their efforts, enjoy here supreme Immortality and at the time of the great end attain complete freedom in Atman.
When one realizes the fact that, the causes of all the causes is uncaused; and views and judges the three states on the base of the uncaused, then everything of the experience of duality, becomes one with the highest imperishable Atman, which is the Self of all.
As flowing rivers disappear in the sea, losing their names and forms, so one is freed from name and form, attains the Atman, which is greater than the Great.
He who knows the Atman as self verily becomes Atman. He overcomes the experience of duality; becomes one with the Atman, immortal self.