The seventeenth letter of the Hebrew alphabet, it symbolizes "the mouth." "We speak Grace (we communicate knowledge through Peh, the mouth) that we do know (in Daath), and testify that we have seen (with Ayin)." Its Kabbalistic value is 80.
"We cannot know anything about the Soul and Spirit when we do not know ourselves."
Samael Aun Weor, Tarot and Kabbalah