CC Antya 20.38

rasāntarāveśe ha-ila viyoga-sphuraṇa
udvega, viṣāda, dainye kare pralapana
Word for word: 
rasa-antara-āveśe — in the ecstatic love characterized by different mellows; ha-ila — there was; viyoga-sphuraṇa — awakening of separation; udvega — distress; viṣāda — moroseness; dainye — humility; kare pralapana — speaks like a crazy person.
Translation: 
Separation from Kṛṣṇa awoke various mellows of distress, lamentation and humility. Thus Śrī Caitanya Mahāprabhu spoke like a crazy man.