What's the problem of taking part in to a religion if you feel happy with it? The bad thing is when you try to convince The rest. I'm not a religous person, but I do envy those who truly believe. More than the half of spain feel Easter as a tradition, and most of them are not fanatic at all. You just have to get involve with spanish people for a short time.
And there is a church inside as the Christians built another one after the reconquest. And lots of churches were build on top or Roman temples and other 'pagan' ritual sites. that has allways been done. Whenever someone invaded someone else and established themselves there with a new religion, they would substitute the previous religious building with their own. The more you know.
