In one sloka, Krishna says, `All the worlds (where beings exist) up to the world of Brahma-ji are subject to return. However, having reached me, Arjuna, there is no rebirth…Is it possible for a jnani to make a mistake in Brahmaloka and be re-born to start his/her unfinished journey? Does the shastra say anything about this?—Mohan S

Let me make it clear that a jnani is free right here and right now, and he does not go to Brahmaloka. He is free right here and he remains one with all-pervading awareness. But, yes, a person who has gone to Brahmaloka because his nishtha has not been complete will go to Brahmaloka and he has to wait there to be taught by Brahma-ji. If he is distracted there and slips, he can come back in the next kalpa to start his journey again. Chances are good that at that stage he would have gained enough to know the truth in Brahmaloka itself unless, of course, he went to Brahmaloka on the strength of the rituals and meditation he has done. In that situation i.e. if he has not understood the truth because he is not open enough to know it, he will have to come back and start his journey.