CC Antya 6.124

bhakta-citte bhakta-gṛhe sadā avasthāna
kabhu gupta, kabhu vyakta, svatantra bhagavān
Word for word: 
bhakta-citte — in the heart of a devotee; bhakta-gṛhe — at the house of a devotee; sadā avasthāna — always resides; kabhu gupta — sometimes hidden; kabhu vyakta — sometimes manifest; svatantra — fully independent; bhagavān — the Supreme Personality of Godhead.
Translation: 
The Supreme Personality of Godhead always resides either in the heart or in the home of a devotee. This fact is sometimes hidden and sometimes manifest, for the Supreme Personality of Godhead is fully independent.