CC Ādi 3.13

yatheṣṭa vihari’ kṛṣṇa kare antardhāna
antardhāna kari’ mane kare anumāna
Word for word: 
yathā-iṣṭa — as much as He wishes; vihari’ — enjoying; kṛṣṇa — Lord Kṛṣṇa; kare — makes; antardhāna — disappearance; antardhāna kari’ — disappearing; mane — in the mind; kare — He makes; anumāna — consideration.
Translation: 
Lord Kṛṣṇa enjoys His transcendental pastimes as long as He wishes, and then He disappears. After disappearing, however, He thinks thus: