Heith (ח) symbolizes the "life force" and its shape represents a doorway, but one where the top is connected, indicating a transcendental gateway. Chet is associated with the unconscious mind and the archetypal field of potential. It is the letter of "sin" and "grace," as both involve stepping beyond a boundary. In Kabbalistic wisdom, the eighth letter, Chet, connects to the super-conscious level, offering a path to return to divine source and experience a profound mystical transformation.