Jewish Demons, Ghosts, and Goblins

In another baraita it was taught that Abba Binyamin says: If the eye was given permission to see, no creature would be able to withstand the abundance and ubiquity of the demons and continue to live unaffected by them.

Similarly, Abaye said: They are more numerous than we are and they stand over us like mounds of earth surrounding a pit.

Rav Huna said: Each and every one of us has a thousand demons to his left and ten thousand to his right. God protects man from these demons, as it says in the verse: “A thousand may fall at your side, and ten thousand at your right hand; they will not approach you” (Psalms 91:7).

One who seeks to know that the demons exist should place fine ashes around his bed, and in the morning the demons’ footprints appear like chickens’ footprints, in the ash. One who seeks to see them should take the afterbirth of a firstborn female black cat, born to a firstborn female black cat, burn it in the fire, grind it and place it in his eyes, and he will see them. He must then place the ashes in an iron tube sealed with an iron seal [gushpanka] lest the demons steal it from him, and then seal the opening so he will not be harmed. Rav Beivai bar Abaye performed this procedure, saw the demons, and was harmed. The Sages prayed for mercy on his behalf and he was healed.

Before Rava became the head of the yeshiva, his wife, the daughter of Rav Ḥisda, would rattle a nut in a copper vessel for him. This was in order to fend off demons when he was in the bathroom. After he was chosen to preside as head of the yeshiva, he required an additional degree of protection, so she constructed a window for him, opposite where he would defecate, and placed her hand upon his head.

The Sages taught: A person should not drink water at night. And if he drank, his blood is upon his own head, due to the danger. The Gemara asks: What is this danger? The Gemara answers: The danger of the shavrirei, an evil spirit that rules over water. And if he is thirsty, what is his remedy? If there is another person with him, he should wake him and say to him: I thirst for water, and then he may drink. And if there is no other person with him, he should knock with the lid on the jug and say to himself: So-and-so, son of so-and-so, your mother said to you to beware of the shavrirei verirei rirei yirei rei, found in white cups. This is an incantation against the evil spirit.

Indeed, Rava created a man, a golem, using forces of sanctity. Rava sent his creation before Rabbi Zeira. Rabbi Zeira would speak to him but he would not reply. Rabbi Zeira said to him: You were created by one of the members of the group, one of the Sages. Return to your dust.

That evening he led him to the netherworld and showed him the wicked ones whom the demons were smiting with brands of fire and who were crying: “Woe is me, woe is me,” and none had mercy for them. The angel then said to the soul: “Do you know who these are?” And he replied: “No, my master.” Whereupon the angel told him: “These are the ones who will be consumed. They were formed like you and went out into the world, but they did not keep the Torah and the statutes of the Holy One, blessed be He, and that is why they have come to this disgraceful end that you are witnessing. Be assured that you will ultimately leave this world, but if you are righteous and not wicked, you will be worthy to enjoy life in the world-to-come.” How do we know that this is so? From the fact that it is said: For I was a son unto my father, tender and an only one in the sight of my mother. And he taught me, and said unto me: “Let thy heart hold fast upon My words, keep My commandments and live” (Prov. 4:3–4).

The Gemara objects: Demons too can appear in human form, and therefore the fact that the being looked human is not a proof that it is not a demon. The Gemara explains: It is a case where they saw that he has a shadow [bavua]. The Gemara objects: Demons also have a shadow. The Gemara explains: It is a case where they saw that he has the shadow of a shadow. The Gemara objects: And perhaps demons too have the shadow of a shadow? Rabbi Ḥanina says: Yonatan my son taught me that demons have a shadow but they do not have the shadow of a shadow.

These “demons” were primarily composed of only 2 of the 4 elements which man is made of, i.e. of fire and air (spirit). Seeing that they are also light in weight they can fly all over at will. At the time of their creation they were composed of only two elements instead of the four elements which human beings, animals, as well as the plants have in common. As a result, instead of possessing solid bodies such as human beings and animals which therefore are tangible and easily recognizable, these demons are of such transparent shape that they cannot be easily seen and identified. However, they are able to assume a visible form when they so desire by “dressing up” as if they were humans or animals. Their “bodies” are essentially spiritual in nature The creatures composed of four elements are germane to their environment being a composition of the elements in which they exist, i.e. earth, and they fall sick when the correct balance of their four elements is disturbed so that they die as a result and the respective elements disintegrate each to merge again with its constituent part. These demons experience a similar fate when there is an imbalance in the two elements they consist of.
This is what our sages (Chagigah 16) meant when they said that we have been told of six features possessed by these demons to help us identify them. In three respects they are like human beings, whereas in another three respects they are like angels, i.e. disembodied creatures. These demons have wings, can fly, and have foreknowledge of future events just like the angels.