Revatīnandana: I have a hazy memory that one time I heard that when a soul, when it finally does enter into brahma-jyotir, that he has to remain there for some long duration of time, a daytime of Brahmā or a lifetime of Brahmā. Is that correct? What is that duration?
Prabhupāda: Not that. That is not like that.
Revatīnandana: Not like that. Thank you.
Prabhupāda: But he feels inconvenience without varieties of life. The Bhāgavata says, tvayy asta-bhāvād aviśuddha-buddhayaḥ: "Their intelligence is not clean." Arūhya kṛcchreṇa paraṁ padaṁ tataḥ: (SB 10.2.32) "Although they rise up to the brahma-jyotir," patanty adho tataḥ, "they again come back."
Haṁsadūta: And the nirvāṇa conception of life is just before Brahman?
Prabhupāda: Nirvāṇa conception is marginal position between brahma-jyotir and this material world.
Haṁsadūta: Just on the brink.
Prabhupāda: Yes. Kāraṇārṇava. Kāraṇārṇava. The Kāraṇa Ocean wherefrom the beginning of creation, material creation, that is nirvāṇa.