The word intelligence as it is known by us, and spoken in everyday language, does not give a full idea; especially the word intelligence as used by modern science will only convey to us something which is the outcome of matter or energy. But according to the mystic, intelligence is the primal element, or the cause as well as the effect. While science acknowledges it as the effect, the mystic sees in it the cause. One may ask, "How can intelligence create this dense earth which is matter? There must be energy behind it." But this question comes because we separate intelligence from energy or matter. In point of fact it is spirit which is matter, and matter which is spirit; the denseness of spirit is matter, and the fineness of matter is spirit.