Pay no attention to Tarheel, laurak - I am more 'resident wise-acre' than any prophet or theologian. Besides, I sort of revel in needing the patience of others in how God is not finished with me, yet. :)
The Rapture has no Catholic foundation because it has simple tent-meeting Gospel-renewal roots. It is sort of like trying to be Calvinist about election, saved once and for all by accepting Jesus in re-birth and being super-denominational in non-creedal, feel-good 'faith'. It's a whole lot of whooey goin' down.
Worse, contra the Ninth Beatitude, the Rapture portends little or no suffering on the Christian's part for being of Christ, His Church and His prophets - for, these worthies suffered like we might and maybe must. Rapture maintains that Christ will come early and save SOME of us from the full cost in suffering of salvation. It would be akin to the twelve legions of angels defending Christ, if He but asked such of His Father. And, do let us remember that one angel, all by himself, could defeat all that Rome could send against him - he is not physical, is tied intimately not to mention eternally and infinitely to God. He could defeat Rome while reading the poetic Psalms aloud. And, of wonders, his weapon just may have turned out to be large- and wide-scale conversion of whole Roman legions.
So, Rapture defies revelation. But, feel-good faith has had thrall over many a frustrated Protestant, and 'I'm-BORED!' Catholic. So, why not the Rapture, a true feel-good heresy?
Now, all this is not to say that Christ cannot give graces so as to 'feel good' for any of us at any time. But, this can happen in the midst of agonies of body and heart. It can happen as miraculous cures, at Lourdes and at graves of saints. For, peace of soul does feel good, and a composed cheerful heart feels good. I even 'feel good' looking at my favorite icon - the Crucifix. That could have been ME up there. But, Love permitted me to kill Him in my place. Lord, how good You make me feel.
A Christian may be said to accept Rapture, as in happiness, every day in prayer. Our God listens, and He will answer as He can - yeah, maybe even 'NO!'. But, in prayer one knows he is heard, and whatever God sends, the person who prays knows it's God's best. Hail to Thee, mighty God - mightiest in love.
Now, laurak, is there any other Rapturous question? When she answers it, Mistress Mary K. can correct me with part of her answer. ;)
PLUS - have you tried looking into EWTN's and/or Catholic Answers question forums for more edifying and complete and satisfying answers? Sure enough - EWTN.com - Faith pull-down - Catholic Q&A tab - search form keyword:Rapture = result of 96 entries dating over the years.
Good grief! I must be feeling better (Punnish-ment here not intended) - I can't get me to stop typing.