Because it is TRUE

Mark Shea from Catholic and Enjoying it! is a great writer. I found this gem while reading a piece he wrote on the Perpetual Virginity of Mary. I had to pass it along as it is a good summary of exactly what the Catholic Faith IS. I think you will find it stands well enough on its own even though it is an answer to a specific question:

The answer is that the Catholic faith is not a product of consumer culture. It proposes certain truths to us not because they suit our lifestyle, but because they're true. Nobody prefers a universe in which it's necessary to "take up your cross" (versus, say, a universe in which you just have to take up your TV remote) in order to find life eternal. It's just that the universe Jesus describes happens to be the universe we live in, like it or not. In the same way, the Church tells us Mary is a perpetual virgin not because it suits somebody's lifestyle, but because she is a perpetual virgin, and that has real implications for us.

 There are some things that just are... whether we like it or not. Embrace the reality and realize that God give's us everything we need... despite ourselves.

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