saḥ - Kaśyapa Muni; vai - indeed; samādhi-yogena - by mystic meditation; kaśyapaḥ - Kaśyapa Muni; tat - then; abudhyata - could understand; praviṣṭam - entered; ātmani - within himself; hareḥ - of the Supreme Lord; amśam - a plenary portion; hi - indeed; avitatha-īkṣaṇaḥ - whose vision is never mistaken.

Being situated in a meditational trance, Kaśyapa Muni, whose vision is never mistaken, could see that a plenary portion of the Supreme Personality of Godhead had entered within him.