"A person who constantly engages in devotional service to Kṛṣṇa by chanting His holy name becomes so transcendentally attached to the chanting that his heart becomes softened without extraneous endeavor. When this happens, he exhibits transcendental ecstasies by sometimes laughing, sometimes crying, sometimes singing and sometimes dancing—not exactly in an artistic way, but just like a madman."
Lord Caitanya further informed Prakāśānanda Sarasvatī: “Because I have full faith in My spiritual master's words, I always engage in chanting Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare. I do not know how I have become just like a madman, but I believe the name of Kṛṣṇa has induced Me.