Text 23
iti mīmāṁsatas tasya
brahmaṇaḥ saha sūnubhiḥ
bhagavān yajña-puruṣo
jagarjāgendra-sannibhaḥ
iti — thus; mīmāṁsataḥ — while deliberating; tasya — his; brahmaṇaḥ — of Brahmā; saha — along with; sūnubhiḥ — his sons; bhagavān — the Personality of Godhead; yajña — Lord Viṣṇu; puruṣaḥ — the Supreme Person; jagarja — resounded; aga-indra — great mountain; sannibhaḥ — like.
While Brahmā was deliberating with his sons, the Supreme Personality of Godhead, Viṣṇu, roared tumultuously like a great mountain.
It appears that great hills and mountains also have their roaring power because they are also living entities. The volume of the sound vibrated is in proportion to the size of the material body. While Brahmā was guessing about the appearance of the Lord’s incarnation as a boar, the Lord confirmed Brahmā’s contemplation by roaring with His gorgeous voice.