Are You Spiritual but Not Religious?

A CNN opinion piece recently highlighted the growing trend of people identifying as spiritual, but not religious.

Writer Allen Miller believes the trend "highlights the implosion of belief that has struck at the heart of Western society." Young people in particular are moving toward this philosophy -- a belief system that takes a little Buddhist meditation here, a little Sermon on the Mount there -- and are drifting ever so steadily away from religious institutions.

If you were to see the Gothic, breathtakingly beautiful cathedrals of Europe on a Sunday morning, you wouldn't be surprised. They're mostly empty. Postmodernism hit Europe after WWII, causing a generation to feel abandoned by a personal Creator. (Not the only contributing factor, but one of them.)

Two questions here: why are so many people jumping on the "spiritual but not religious" bandwagon? (This includes more than just the yoga-loving, existentialist under-30 crowd here. This also includes the mega-church members who go to hear a "lite" sermon that makes them feel good but rarely refers to a theological tome. And Oprah.)

And do you consider yourself one of the spiritual ones? If so, why?