404. We have learned that in the secrets of defilement, the filth of the nails stirs other filth, MEANING THE FILTH OF THE SERPENT. For this reason, it is necessary to hide them. One who eradicates them entirely, BY BURNING THEM, is considered as having awakened Chesed in the world. We have learned that man does not need to leave a memorial for those evil kinds. As we have learned, 1,405 bad types are caught up in the filth that the mighty serpent spews. All are roused by that filth in the nails.
405. Anyone who wants to, can perform witchcraft with them on people, due to these DEMONS that derive from them. He who eradicates them, MEANING BURNS THEM, is considered as if he multiplies kindness in the world so that evil Judgments are not present, and that filth will be annuled, and its nails that are marked by it, BY THAT FILTH. We have learned that one who steps by foot or shoes on the nails might be harmed. If it is so with the remnants of what was left of the refuse above, then how much more so the woman that welcomes and joins with the serpent in whom he injected his refuse. Woe to the world who will receive from her AT THIS TIME, SINCE IT RECEIVES from that refuse. "Also you shall not approach to a woman in the impurity of her menstrual flow" (Vayikra 18:19), MEANING NOT TO RECEIVE FROM MALCHUT AT THE TIME THE SERPENT JOINS HER, BECAUSE OF THE SIN OF LOWER BEINGS, AND INJECTS FILTH INTO HER.