I just read a great article – you can find it here.

http://www.firstthings.com/onthesquare/?p=839

An excerpt is below:

Impossible, irrational, delusionary, absurd, untrustworthy, fictitious, imaginary: It is always easier to approach—or rather, ignore—mysteries of math by dismissing them as false or unintelligible. And how much more for mysteries of faith. So is God like an imaginary number, waiting to be discovered and accepted in a renaissance of faith? The simile is ridiculous, on its face. But, in a curious way, the ramblings of scientific history remind those who strive for reason just how vast reality is. The realization is at once unsettling and exhilarating: Truth is far richer than our minds—always confined by the here and now—can prove or even imagine.