The unique characteristics of mysticism demand its consideration as both an art and a science. Mysticism is the direct knowledge of God that occurs through the extemporaneous experience of union. This involves something deep within us, which is beyond the senses, intellect and imagination, and much more sublime. We call this something "love," although in truth, it cannot be named. Furthermore, although we have union with God through love, God must out of necessity remain a mystery. The higher degrees of union have nothing to do with our own efforts or actions, but rather depend upon the grace of God