וָאֵ֖רֶא הַחַיּ֑וֹת וְהִנֵּה֩ אוֹפַ֨ן אֶחָ֥ד בָּאָ֛רֶץ אֵ֥צֶל הַחַיּ֖וֹת לְאַרְבַּ֥עַת פָּנָֽיו׃
Now as I beheld the living creatures, behold one wheel at the bottom hard by the living creatures, at the four faces thereof.
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.