 It is the dialectic opposite of God's contraction into the world.To be enlightened and capable of "Bitul ha-Yesh", pursuing the pure spiritual aims and defying the primitive impulses of the body, one must overcome his inferior "Bestial Soul", connected with the Eyes of the Flesh.He may be able to tap into his "Divine Soul" ("Nefesh Elohit"), which craves communion, by employing constant contemplation, "Hitbonenot", on the hidden Godly dimension of all that exists.