The weakest and the front, which is what is next to the face and opposite to it is the back, which is what is next to the nape, its shape, its fairness and other things. Then the spirit added to it was blown into it, and upon this blowing into it, by flowing through its parts, the pillars of humor occurred, which are bile, black, blood, and phlegm, so the bile was from the fiery pillar from which God created it. In God Almighty’s saying, “From clay like pottery,” and the black was from the dirt, which is His saying, “He created it from dust,” and the blood was from the air, which is His saying, “Masnoon,” and the phlegm was from the water with which he kneaded the dirt and it became clay. Then he created in it the attractive force by which the animal attracts food, then the holding force, by which it holds what it feeds on. The animal, then the digestive force, with which it digests food, then the driving force, with which it expels wastes from itself, such as sweat, steam, wind,