The tastiest part of a Shabbat dinner is usually the bread and the wine. Why is this? Because of the elaborate rituals which surround them. In 1907, Freud argued that modern-day compulsions are just a resurfacing of the neurotic rituals of ancient religions. Yet, perhaps we, as humans, need rituals, and compulsions display our modern psyche, deprived of religious rites, lashing out. Even the rationalist philosopher Kant, with his evening constitutional, embraced the therapy of ritual.