With the soul of Adam the souls of all the generations of men were created. They are stored up in a promptuary, in the seventh of the heavens, whence they are drawn as they are needed for human body after human body.

The soul and body of man are united in this way: When a woman has conceived, the Angel of the Night, Lailah, carries the sperm before God, and God decrees what manner of human being shall become of it--whether it shall be male or female, strong or weak, rich or poor, beautiful or ugly, long or short, fat or thin, and what all its other qualities shall be. Piety and wickedness alone are left to the determination of man himself. Then God makes a sign to the angel appointed over the souls, saying, "Bring Me the soul so-and-so, which is hidden in Paradise, whose name is so-and-so, and whose form is so-and-so." The angel brings the designated soul, and she bows down when she appears in the presence of God, and prostrates herself before Him. At that moment, God issues the command, "Enter this sperm." The soul opens her mouth, and pleads: "O Lord of the world! I am well pleased with the world in which I have been living since the day on which Thou didst call me into being. Why dost Thou now desire to have me enter this impure sperm, I who am holy and pure, and a part of Thy glory?" God consoles her: "The world which I shall cause thee to enter is better than the world in which thou hast lived hitherto, and when I created thee, it was only for this purpose." The soul is then forced to enter the sperm against her will, and the angel carries her back to the womb of the mother. Two angels are detailed to watch that she shall not leave it, nor drop out of it, and a light is set above her, whereby the soul can see from one end of the world to the other. In the morning an angel carries her to Paradise, and shows her the righteous, who sit there in their glory, with crowns upon their heads. The angel then says to the soul, "Dost thou know who these are?" She replies in the negative, and the angel goes on: "These whom thou beholdest here were formed, like unto thee, in the womb of their mother. When they came into the world, they observed God's Torah and His commandments. Therefore they became the partakers of this bliss which thou seest them enjoy. Know, also thou wilt one day depart from the world below, and if thou wilt observe God's Torah, then wilt thou be found worthy of sitting with these pious ones. But if not, thou wilt be doomed to the other place."