CC Ādi 4.265

rāga-mārge bhakta bhakti kare ye prakāre
tāhā śikhāila līlā-ācaraṇa-dvāre
Synonyms: 
rāga-mārge — on the path of spontaneous love; bhakta — the devotee; bhakti — devotional service; kare — does; ye prakāre — in what way; tāhā — that; śikhāila — I taught; līlā — pastimes; ācaraṇa-dvāre — by means of practical demonstration.
Translation: 
“I taught devotional service that springs from the devotees’ spontaneous love by demonstrating it with My pastimes.