In the Kabbalistic work "Treatise on the Left Emanation", Samael is part of the Qliphoth, prince of all demons, and spouse of Lilith. The two are said to parallel Adam and Eve, being emanated together from the Throne of Glory as a counterpart. Asmodeus is also mentioned to be subservient to Samael and married to a younger, lesser Lilith. According to the treatise, God castrated Samael in order not to fill the world with their demonic offspring, this being the reason why Lilith seeks to fornicate with men.