Mental Gender
The masculine and feminine principles operating in the mind.
In the mind, the masculine principle is expressed as the objective, reasoning, willing mind, while the feminine is the subjective, creative, feeling mind. Both must work together for balanced mental function and true creation. Neither is superior; both are necessary.
The Masculine Principle is the 'I'; the Feminine Principle is the 'Me.'
Mental gender explains the dynamics of creative thought and manifestation.
The Kybalion