이사야 46:3의 Kabbalah

But the soul of Yisrael comes from the body of that tree. And from there, the souls fly off down into this earth, down deep inside its bowels! And the secret behind this is as written: "For you shall be a land of delight" (Malachi 3:12). Therefore, Yisrael is the darling son for whom She yearns from the bottom of Her heart. And Yisrael are called "who are borne by Me from birth (lit. 'belly')"(Isaiah 46:3) and not from the wings that are on the outside. And furthermore, the proselytes have no part in the upper tree, especially not in its body (trunk). So their place is in the wings and not beyond. Therefore, the convert's place is under the wings of the Shechinah, and not higher. And the true proselytes are those who reside there - and not inside. This is why it is said: "Let the earth bring forth the living creatures after their kind." And to whom? "Cattle, and creeping thing, and beast of the earth after their kind" (Genesis 1:24). All draw their spirit from within that living creature, but each one according to its kind, as is appropriate to it!