The word māyāmaya is very significant in this verse. Māyā means “mercy,” “specific knowledge” and also “illusion.” Therefore Lord Boar is everything; He is merciful, He is all knowledge, and He is illusion also. The sound which He vibrated as the boar incarnation was answered by the Vedic hymns of the great sages in the planets Janaloka, Tapoloka and Satyaloka. The highest intellectual and pious living entities live in those planets, and when they heard the extraordinary voice of the boar, they could understand that the specific sound was vibrated by the Lord and no one else. Therefore they replied by praying to the Lord with Vedic hymns. The earth planet was submerged in the mire, but on hearing the sound of the Lord, the inhabitants of the higher planets were all jubilant because they knew that the Lord was there to deliver the earth. Therefore Brahmā and all the sages, such as Bhṛgu, Brahmā’s other sons, and learned brāhmaṇas, were enlivened, and they concertedly joined in praising the Lord with the transcendental vibrations of the Vedic hymns. The most important is the Bṛhan-nāradīya Purāṇa verse Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.