A 19th century Jewish mystic

A 19th century Jewish mystic, whose name escapes me, a Ukrainian rabbi, said that he learned the love of God from a drunken peasant. He was traveling in the wintertime and took refuge in an inn where two drunks were hugging each other and expressing their undying love for one another when one stopped and asked the other, "What hurts me?" The second drunk asked, "How should I know what hurts you?" The first drunk said, "If you don't know what hurts me, how can you love me?" Jesus knows what hurts you...