body
mind
spirit
"According to the perennial philosophy -- the common mystical core of the world's great spiritual traditions -- men and women possess at least three different modes of knowing: the eye of flesh, which discloses the material, concrete, and sensual world; the eye of the mind, which discloses the symbolic, conceptual, and linguistic world; the eye of contemplation, which discloses the spiritual, transcendental, and transpersonal world. These are not three different worlds, but three different aspects of our one world, disclosed by different modes of knowing and perceiving."
--Ken Wilber, (4b)