According to Jacob Behmen (see Jacob Boehme) there are seven active principles, the “Fountain Spirits” or “Mothers of Existence.” These were-the astringent quality; the sweet quality; the bitter quality; the quality of fire; the quality of love; the quality of sound; the quality of essential substance. The reciprocal action of the antipathetic qualities resulted in the Supreme Unity. Each is at once the parent and the child of all the rest, for they generate and are generated by each other. The seven golden candlesticks of the Apocalypse typify them. A.G.H.
Source: 81, 164