Chapel Perilous, like the mysterious entity called "I," cannot be located in the space-time continuum; it is weightless, odorless, tastless and undetectable by ordinary instruments. Indeed, like the Ego, it is even possible to deny that it is there. And yet, even more like the Ego, once you are inside it, there doesn't seem to be any way to ever get out again, until you suddenly discover that it has been brought into existence by thought and does not exist outside thought. Everything you fear is waiting with slavering jaws in Chapel Perilous, but if you are armed with the wand of intuition, the cup of sympathy, the sword of reason, and the pentacle of valor, you will find there the Medicine of Metals, the Elixir of Life, the Philosopher's Stone, True Wisdom and Perfect Happiness.