CC Madhya 21.9
yogeśvarotīr bhavatas tri-lokyām
kva vā kathaṁ vā kati vā kadeti
vistārayan krīḍasi yoga-māyām
kaḥ — who; vetti — knows; bhūman — O supreme great one; bhagavan — O Supreme Personality of Godhead; para-ātman — O Supersoul; yoga-īśvara — O master of mystic power; ūtīḥ — pastimes; bhavataḥ — of Your Lordship; tri-lokyām — in the three worlds; kva — where; vā — or; katham — how; vā — or; kati — how many; vā — or; kadā — when; iti — thus; vistārayan — expanding; krīḍasi — You play; yoga-māyām — spiritual energy.
“ ‘O supreme great one! O Supreme Personality of Godhead! O Supersoul, master of all mystic power! Your pastimes are taking place continuously in these worlds, but who can estimate where, how and when You are employing Your spiritual energy and performing Your pastimes? No one can understand the mystery of these activities.’
This verse is quoted from Śrīmad-Bhāgavatam (10.14.21).