I didn't ask you what it means to be Catholic. If you don't wish to respond to me then respond to Bob who asks the same question but more eloquently. If it isn't for truth what's the point of any religion?
I'll try again.
The Catholic Church does not have a monopoly on Truth.
You asked, "If there isn't a distinctive truth in Catholocism, then why be Catholic?"
I can only speak for myself, as I'm sure there are as many reasons for being Catholic as there are Catholics.
I would be Orthodox if I hadn't married a Roman Catholic. Rather than ask her to leave a church she joined since birth for one neither of us belonged to, I became Eastern Catholic. It was a matter of maintaining communion within the marriage, nothing about the Catholic Church being any more truthful or better than the Orthodox (because it isn't).
But enough about me. I'd rather continue this line of conversation in a new topic and stick to your original question about the Theology of the Body.