Prabhupāda: Yes. Yes.
Professor Durckheim: And I was one of the two officers who were not wounded in my regiment. And there I met death again and again. And I saw people just killed next to me. Suddenly it was out. It was just only, as you say, the body without soul. But I realized also, in myself, that when death was near and you had accepted death, accepted to die, then you realized something which has nothing to do whatsoever with death.
Prabhupāda: Yes. That is self-realization.
Professor Durckheim: So this marked me very much. It's the very beginning of my inner way, these four years of World War.
Prabhupāda: There is a verse, nārāyaṇa-parāḥ sarve na kutaścana bibhyati (SB 6.17.28). If one is God-realized soul, he is not afraid of anything. Svargāpavarga-narakeṣv api tulyārtha-darśinaḥ. So actually, if one is self-realized, he is no more fearful or concerned with the bodily necessities of life. That is liberation. Just like as you mentioned sleeping. Sleeping also, a bodily necessity. When you are tired, you sleep. That is bodily necessity. But it is not spiritually necessary. About the Gosvāmīs it is said, nidrāhāra-vihārakādi-vijitau: "Conquered over sleeping, eating, mating." That is also one of the symptoms of self-realization. These things are necessities of the body. So the more one is advanced in self-realization, these things will be minimized: eating, sleeping, mating and defending. And gradually it will come to nil, because this is bodily necessities. Self, the active principle, that is different. The active principle, necessity is different. That is Kṛṣṇa consciousness, God consciousness. But these are bodily necessities: eating, sleeping, mating. So, so long this body is there, of course, we must eat, we must sleep. That is required. But the more we advance, these necessities diminished. Yes. Bhaktiḥ pareśānubhavo viraktir anyatra syāt (SB 11.2.42). Then sleeping will be considered a waste of time. A self-realized man goes to sleep, he thinks that, "I am going to waste so much time, because still I am subjected to the necessities of this body." He regrets.