The Aces represent the Root of the Powers of the Elements. The four elemental forces manifesting the 12 single signs (zodiac & 12 of 22 Hebrew letters) come from the World of Aziluth, Spirit realm. This occurs in the sphere of Keter, the Crown on the Tree of Life. Thus, the Spirit of Body is Sustainability. The Spirit of Mind is Awakening. The Spirit of Heart is Receptivity. And the Spirit of Spirit is Soul energy. The Essence of Being begins and ends here, then re-begins.