A few of his disciples had decided to do a "grape cure" and eat nothing but grapes and grape juice for a while. Paramahansa Yogananda smiled when he heard about this and remarked, "Devotion is the greatest purifier." His disciple Donald Walters asked, "Is it your wish then, Sir, that we break this fast?" "Well, I don't want you to break your wills," said Yogananda, "now that you have set them in this way. But your time would be better spent if you worked on developing devotion. A pure heart is the way to God, not a pure stomach.