CC Antya 16.85

garuḍera pāche rahi’ karena daraśana
dekhena, — jagannātha haya muralī-vadana
Word for word: 
garuḍera pāche — behind the Garuḍa column; rahi’ — staying; karena daraśana — He was seeing; dekhena — He saw; jagannātha — Lord Jagannātha; haya — was; muralī-vadana — Lord Kṛṣṇa with His flute to the mouth.
Translation: 
Śrī Caitanya Mahāprabhu stayed behind the huge column called the Garuḍa-stambha and looked upon Lord Jagannātha, but as He looked He saw that Lord Jagannātha had become Lord Kṛṣṇa, with His flute to His mouth.