Re: what does religion say about ki?
"I see no problem correlating christian beliefs with eastern beliefs, or any other religion for that matter."
Christianity, in and of itself, is far more eastern than it is western (it's called the Middle East not the Middle West). Far too many of the early disciplines of the faith have been relegated to the "East." Just one example is meditation. The west won't touch meditation with a ten-foot pole but the Bible is replete with references to meditation. For all intents and purposes the word meditation, in the west, is now synonymous with "pondering."
"Western Christianity" is left without those crucial disciplines and accordingly many western adherents are left hungry for something more, deeper. And thus the draw for many in the west to the eastern religions.
For some time now I've been convinced that I could learn more about my own Christian faith from a Buddhist monk.