If you really want to read the best treatment on this, try JPII’s
Theology of the Body or Christopher West’s book,
Theology of the Body for Beginners.
In a nutshell, by denying the procreative aspect of the sexual union, the sole end of the act is pleasure seeking. The individual members no longer need to respect the awesome potential for new life from each union. When couple practices NFP, they are respectful of the gift of fertility they are given, and are continuallly reminded that through their love, God brings life. It takes love and respect for a husband to say to his wife “I desire you now, but since we have prayerfully concluded we cannot have another child now, I can wait, for the sake of our family.” This instead of the
expectation that the desire be met any time it is felt.
Hmmm, I think that was a poor explanation, but I hope it might help.
Personally, I think one of the biggest testimonies to this truth is the statistics regarding what the widespread use of birth control has done to marriages. Divorce and cheating are way up during the time ABCs became the norm. To many men,
all women are now “fair game” since the natural consequences have been removed. Rather than freeing women, “the pill” has made them more abused than ever before, IMHO.
Sorry, but I just found this article by someone far more eloquent than I:
catholic.com/thisrock/2003/0311fea3.asp
Please read it – I hope it helps.
Peace,
javelin