Ezechiele 1:15 Cabala: Zohar

"And Abraham was old, advanced in age" (Gen. 24:1). We learned in the Mishnah, Rabbi Elazar said, In any case, this Mishnah well explains, "Behold one ofan (wheel) upon the earth by the living creatures, with its four faces" (Ezekiel 1:15). It becomes a Neshamah as said in the earlier Mishnah.