Devotee: How old was Prahlāda Mahārāja when (indistinct). How old was Prahlāda Mahārāja?
Prabhupāda: Oh, Prahlāda Mahārāja was five years old only.
Devotee: Then how (indistinct) hear from Vyāsadeva?
Prabhupāda: He learned this bhāgavata-dharma from the womb of his mother. His mother was instructed... His mother, when she was pregnant, she was arrested by the enemies of her husband, and Nārada Ṛṣi saved her and he took the girl, pregnant girl, at his āśrama and kept her. And as it is the practice of saintly persons to instruct about God, so he was instructing and Prahlāda Mahārāja was hearing from the womb of mother. Yes?
Devotee: (indistinct) Manu was on this planet. Now he's not?
Prabhupāda: Yes, Manu... Manu's son, Ikṣvāku, was in this planet, but Manu may be in another planet. Just like Manu's father, the sun, sun-god, Vivasvān, he is in the other planet. Similarly, the population of every planet has increased from one planet to another, like that. So manu's son, Ikṣvāku, he happened to be in this planet.
Devotee: You said Prahlāda Mahārāja, he heard Nārada Muni speaking in the womb. (indistinct) hear you speaking?
Prabhupāda: Certainly.
Devotees: (loud exclamations and laughter)
Prabhupāda: Why not Haimāvatī's child? Even a lizard is here in this room, he is also hearing. This is transcendental sound. Just like there was a sound, everyone's attention was diverted there. So sound is so penetrating. Sound is the origin of creation. So this is transcendental sound. It penetrates everyone's heart. Because everyone is spiritual being. That is the specific significance of sound vibration. It is said in the Śrīmad-Bhāgavatam, ahaituky apratihatā. This spiritual cultivation cannot be checked by any material impediment. Because the child is packed within the womb, within the belly, under the shackles (circles?) of intestines and so miserable condition... In the belly or the abdomen of the mother, the child remains in a very miserable condition. Because the consciousness is not developed. But as soon as the consciousness is developed at the age of seven months, the child wants to come out. Therefore it moves. If it is male child, then it moves toward the right side. If it is female child, then it moves to the left side. So these are description in the Śrīmad-Bhāgavatam. So by the movement of the child you can understand whether it is male or female. (woman exclaims) So this transcendental sound is not checked by any material condition. Therefore it reaches. Therefore it is confirmed in the Bhagavad-gītā that śucīnāṁ śrīmatāṁ gehe yoga-bhraṣṭo'bhijāyate (BG 6.41). One who cannot execute the full course of yoga system, he's given chance to take birth in the family of a pious man or a rich man. So, as you parents, you have taken to Kṛṣṇa consciousness, the child who is coming, he's not an ordinary child. He must have executed in his previous life the yoga siddhi. If you believe Bhagavad-gītā you have to accept.