The seven planes of our Solar system

Monadthe One. The threefold spirit on its own plane. In occultism it often means the unified triad—Atma, Buddhi, Manas; Spiritual Will, Intuition and Higher mind,—or the immortal part of man which reincarnates in the lower kingdoms and gradually progresses through them to man and thence to the final goal.


(Alice A. Bailey "Initiation, Human and Solar")