I was just googling around this morning and I found this great essay. First I googled "mystic" and found: http://themystic.org/ This site is most fascinating and looks very worthwhile.
Then I googled "spiritual" and found another very interesting website. The following link is to an essay that has the same title as this post. There is lots of other juicy material on this website but especially for the single folk, I direct you to this brilliant short essay: http://www.soulhealing.com/single.htm