The Zohar tells us that Yom Kippur is from the Tree of Life, where no evil has any part. On that day even those people who are under a sentence of judgment are forgiven. We hear about the difference between vows and oaths, and about the iniquities of Yisrael that are purified or whitened through repentance. We learn that on Yom Kippur a Shofar raises up a voice for freedom. There are three grades of worship on that day: thought, speech and deed.