The number one is the Sun, the Star King who gives us life. It corresponds to the constellation of Aries which governs the head. The musical note Do and the color white also correspond unto it. Its metal is gold and its precious stone is the diamond.
Among the plexuses, where the chakras are situated, the number one is attributed to the cardiac plexus, because if the heart stops functioning, death arrives. This is why this plexus is the number one. The number one is the wisdom of the Father; it is the Crown, because the Ancient of Days is the King, the one who has the power over nature. He is the number one because He has the power, because He is the one who commands.
Wisdom belongs to the Father; one cannot teach the Monad. The wisdom of the Father foresees everything.
We can become merciless if we fail to act with compassion, because many times we do not understand the Father.
He is the number one on the Kabbalistic Tree. Original ideas correspond to the number one. It is obvious that they belong to the number one, which is willpower, personal initiative, and enterprising courage. The unity of thought and action must be one with the original will and with constancy, which is a formidable impulse for that which must be done.