To me, this term applies to that which we don't really understand, and that which cannot be proved, yet all know on some level. The deep undercurrent. What lies beneath and above. The spirit world. The dreamworld. Levels of consciousness... unity consciousness... the astral plane. Clairvoyance. Mysticism. Tarot and palmistry. Archetypes. Enlightenment. The divine and otherworldly. Synchronicity. Transcendence. The ultimate mystery.
I've been wondering how to best reach these deeper layers...