"To me, mystical or spiritual experience is what happens when your ego is put aside. Spiritual experience is about a sense of merging with something larger than you. And it's your ego that stands in the way. To the extent that you can subdue it, or just put it off to the side for a few hours, amazing things happen, and you realize that you are part of a larger energy..."
I shared this account in my introductory paper about mysticism, but I think it should be shared as a stand-alone post as well. This is because it is so stunningly similar in many respects to Joseph Smith's accounts of the First Vision.