Well since this is the Mary sub-forum, and this is a Mary thread, I think it's about time somebody asked the obvious question: in what way(s) does it help to take a position on Mary's perpetual virginity?
Serious question. For all the different ideas on the subject, this part has never made any sense to me, and most discussion just distracts from this point, which seems like it should be central. Thank you for bringing it back into focus ...
Raze,
For me, part of Mary's virginity is related to how we, as Christians, handle human passions. As Paul writes to the Corinthians, "All things are lawful; but not all things are expedient. All things are lawful; but not all things edify."
If you've ever read the Screwtape Letters, Screwtape writes, "There are things for humans to do all day long without His minding in the least -- sleeping, washing, eating, drinking, making love, playing, praying, working. Everything has to be twisted before it's any use to us. We fight under cruel disadvantages. Nothing is naturally on our side..."
I'm married with three kids, so yes, sex with my wife is lawful per Paul. However, I constantly struggle with my unlawful passions of the flesh (and not just sex, but gluttony, sloth and the other "deadly sins". I'd love to lay around in bed when we have to get the kids up for school. I'd definitely prefer taking my paycheck to get myself a new BMW rather than driving my 7 yr old Focus or the 13 yr old minivan. But this is part of my asceticism, sacrificing my selfishness to my wifes and kids needs.
So Mary's denial of one of God's greatest gifts to humanity is important as it gives me an example to follow in my own life, even though my life isn't as restrictive.
I hope that gives some perspective on it.
Brian