Yesterday, we noted that Ramban takes the view that a human being has three separate souls (or "life-forces"): the growth-nature of a plant, the animate life of an animal, and a rational intellect superimposed on top of that. Ramban brings various proofs for his view, one of which is especially intriguing and relevant. He quotes the Gemara about Rava creating a man - a golem - which he sent to Rabbi Zeira. Upon discovering that this "man" could not communicate, Rabbi Zeira bid it to return to dust. Ramban does not elaborate upon exactly how this proves his point, but apparently it is because this golem must have possessed a