"This is my own opinion, but I'd say asexuality is like the atheism of sexual identity: it both participates in and detaches itself from the world of sexuality. At the same time, asexuality is a widely diverse spectrum by itself. Some people, for instance, will occupy a grey area between sexuality and asexuality, where sex is something they might like having, but it's not much of a concern in their lives (hence they're called 'grey-a' or 'graces'). "