Order for healthy eating:
You are expected to eat healthy food. However, sometimes there just isn’t any healthy food available.
NoAvailableName (and mormor), I believe your difficulty (as outlined in your quote above) is caused by misunderstand philosophical/theological terminology (which St. Thomas Aquinas has entrenched in the theological language of the Church.)
It’s not “ordered for”, it’s “ordered
to” and that phrase does not connote obligation, but final end or purpose (in God’s design) of a thing or action (its
telos.)
(For example, the
telos of your lungs is to keep you alive through breathing.)
When the Church says sexual relations are “
ordered to procreation” that means that we acknowledge that the purpose, final aim and the “what makes it what it is” of married love is the possibility of creating new life. (And
only the possibility, because even with a perfectly healthy set of bodies, whether or not a new, unique human being comes into existence is ultimately in God’s hands.
He is the Creator, not us, even though our bodies provide the physical matter for creation.)
But a “part” so to speak of this
telos of married love its “unitive aspect.” That is to say you cannot have relations that are “ordered to procreation” that are not also unitive. The “bonding” aspect of sexual relations cannot be separated from the possibility of procreation. (See* Humanae Vitae*)
Now this procreative
telos of married love is not diminished because the act is not always fertile. (It just can’t be, because God made women so that they are not (like men) constantly fertile.) Thus “ordered to procreation” includes acts that fall in the naturally infertile times – even when those times are caused by disease. Respecting the *telos *of married love means respecting the God-given bodily design and bodily integrity of men and women.
Artificial contraception attempts to deny or warp the
telos of married love-- it is an attempt to artificially separate the unitive aspect of married love from the procreative aspect by forcing the act to be sterile (regardless of whether or not this attempt is successful.) It does not respect the bodily integrity of men and women, but interferes with it.
Thus NFP is permissible for serious reasons-- because it respects and does not remove the procreative nature of the act and respects God’s design for our bodies.
This, of course, leaves aside the question of intent, but I tend to think we are mostly all on the same page here.
Unless, of course you, or mormor would argue that there is
never any good reason to space or avoid pregnancy. Which, of course, is not Church teaching…