"Because mother Śacī was feeling separation from Śrī Caitanya Mahāprabhu, she thought she was dreaming that her son had come to her. Śrī Caitanya Mahāprabhu, however, wanted to inform her that actually it was not a dream. He actually came there and ate whatever His mother offered Him. Such are the dealings of advanced devotees with the Supreme Personality of Godhead." CC Antya 3.31, Purport
http://prabhupadabooks.com/cc/antya/3/31?d=1