When one refers to feminine energy in a magical or spiritual context, one is referring to energy that is passive and yielding versus masculine energy which is said to be active and penetrating. This is similar to the Eastern concept of yin and yang.
In magick, the feminine mind refers to the unconscious mind. This mind takes in everything and remembers everything, yet remains seemingly passive, though it exerts itself in the form of phobias, deeply held faith and instinctive wisdom. It is through this unconscious, female mind that the collective unconscious can be reached and true magical knowledge and power accessed.
The idea of masculine and feminine energy is often applied to herbs, crystals, and other natural objects that may be used in spellwork. Some of these that are said to contain feminine energy are listed below.