Musar su Deuteronomio 12:23

You will now understand that if someone eats tissue from a living animal (one that is not completely dead) he may possibly be practicing a form of cannibalism, i.e. eating tissue of a fellow human being whose soul was re-incarnated in that animal. This is the mystical dimension of the Torah telling us : "Do not eat the soul with the flesh" (12,23). The entire legislation about domestic animals, free roaming beasts, or even birds which are "impure," is connected to the possibility that such animals harbor a spark of holiness by being host to a soul which had once inhabited a human body, a soul which had originated in the Celestial Spheres. It is irrelevant in this respect whether the soul in question originated in the "left" or the "right" side of the emanations. I have written more about the latter aspect in my commentary on פרשת שמיני. It is when the Israelites conduct themselves in a spirit of sanctity that the promise of Exodus 25,8: "They shall make a Sanctuary for Me and I will dwell among them," will be fulfilled. The people themselves are the Sanctuary within whom G–d promises to reside provided that they lead consecrated lives. Man's three major parts, i.e. the head, the heart and the bowels, correspond to the קדשי קדשים, Holy of Holies, the היכל, Sanctuary, and the חצר הקודש the Holy Courtyard surrounding the Temple, respectively. We have discussed this at length in פרשת תרומה. When a Jew consumes consecrated food he is considered as if he were the sacrifice offered on the Altar. Concerning this aspect of our lives, the Rabbis have said that nowadays our table serves as the altar.