490. "In sorrow you shall bring forth children" is explained THAT SORROW IS THE INNER MEANING OF THE SERPENT. And if you say, why do we need this serpent. HE ANSWERS: he opened a way through which the souls descend into the world, and but for that opening through which the souls can descend, no SOULS would dwell inside man. It is written: "sin crouches at the door" (Beresheet 4:7). What is this door? It is the door OF MALCHUT, which purpose is to give birth, to deliver souls into the world. He, THE SERPENT, stands at the door.