Metaphysical meaning of cross (mbd)
Meta. The crystallization of two currents of thought--the state of consciousness termed sense mind. The perpendicular bar symbolizes the inner current of divine life; the horizontal bar symbolizes the cross current of human limitation. The latter symbolizes the "mind of the flesh," also, and it burdens the body with its various erroneous beliefs. The center of action of this sense mind is in the brain, and there it has to be met in the final overcoming that the I AM undertakes: "The place called The place of a skull."