To know Kṛṣṇa means know everything, because Kṛṣṇa is everything. How Kṛṣṇa is working in everything, even in different parts of our limbs, represented by demigods, they are all described. Even our eyelids moving under the direction of some demigod. And demigods, they are different parts and parcels, bodily limbs of whole Kṛṣṇa. So do not mind, "Why Bhāgavata is studying Kṛṣṇa so analytically?" That is required. If we understand Kṛṣṇa by analytical study, how His divine power is working throughout the whole universe, within the atom, within myself, within the movable, immovable, everywhere, antaryāmī. . . Eko 'py asau racayituṁ jagad-aṇḍa-koṭim (Bs. 5.35). Jagad-aṇḍa-koṭi. This universe, that is not one universe. We are in one of the universes. And Caitanya Mahāprabhu has described, "As there are many multimillions of mustard seed within a bag." Just imagine. If you bring one bag of mustard seed, round, round, so that round, round seed, that each and every universe. So one devotee of Caitanya Mahāprabhu, Vāsudeva Datta, he prayed to Caitanya Mahāprabhu, "Sir, You have come. You deliver all these fallen souls, conditioned souls within the universe. Your kindness can do that. And if You think they are so sinful they cannot be delivered, then I am prepared to take all their sins. I shall remain here alone to suffer. You kindly deliver them." This is Vaiṣṇava desire. Vaiṣṇava is not selfish. He is. . . Vaiṣṇava's real qualification is para-duḥkha-duḥkhī: he is unhappy by seeing others unhappy. Personally he has no unhappiness. Why he should be unhappy? He has got Kṛṣṇa. But as he has become happy by getting Kṛṣṇa, so he wants others also to become happy, and therefore he tries to spread Kṛṣṇa consciousness. This is called para-duḥkha-duḥkhī. He knows that all these conditioned souls, they are, I mean to say, rotting in this material world and suffering. And the only remedy is Kṛṣṇa consciousness. That's a fact. Only remedy is. Bhavauṣadhāc chrotra mano-'bhirāmāt (SB 10.1.4).
This was recommended by Śrīla Parīkṣit Mahārāja, the king. He said that this Kṛṣṇa consciousness is bhavauṣadhi. Bhavauṣadhi means bhava. Bhava means this repeated birth and death. Bhava means you be, and again you not be—not be for few months. Our death means a sleeping for seven months. That is the description we get from the śāstras. Just like you go on sleep every night, so death means to sleep for seven months, unconsciousness, very deep sleep in the womb of the mother. Then as soon as another body is grown up by the ingredients supplied by mother's body or nature, then we get back again consciousness. Just like when we sleep deeply, there is no consciousness. There is consciousness—this is called suṣupti, unconscious. And again, as soon as the body is complete, then we get back our consciousness. Then we become in sleepy condition. Then again, when we come out of the mother's abdomen, that is awakening state. There are three states of conditions: jāgrti, suṣupti and svapna—dreaming condition, awakening condition and unconscious or deep. . . Actually, we do not die. Na jāyate na mriyate vā kadācit (BG 2.20). There is no question of death. It is simply sleeping or deep sleeping, like that.