I have thus explained to you the gross material gigantic conception of the Personality of Godhead. One who seriously desires liberation concentrates his mind on this form of the Lord, because there is nothing more than this in the material world.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
इयानसावीश्वरविग्रहस्य यः सन्निवेशः कथितो मया ते । सन्धार्यतेऽस्मिन् वपुषि स्थविष्ठे मनः स्वबुद्ध्या न यतोऽस्ति किञ्चित्
iyānasāvīśvaravigrahasya yaḥ sanniveśaḥ kathito mayā te | sandhāryate'smin vapuṣi sthaviṣṭhe manaḥ svabuddhyā na yato'sti kiñcit
SB 2.1.38