That’s a very peculiar metaphor because body parts don’t desire anything. Indeed, they are expendable (see e.g. Matthew 18:8). Not exactly a model of love.
Not at all - the head can’t catch that ball without the eye and the hand, or walk without the foot. So we’re not expendable, but our interests and desires (should we have any) are totally subordinate to His.
Yes, but this does not say that there are no chocolate bars in heaven but, rather, that they are perfect chocolate bars (more taste, less filling perhaps?).
If that’s your idea of perfection then it’s a very sad and limited idea indeed. What happened to ‘eye has not seen’? Heaven is NOT ‘just like earth but shinier/crunchier/newer’. It’s been argued that it’s not even a physical place, since a physical place can’t possibly be eternal.
What would be the point of a ressurection of the body otherwise?
Then why do angels have no bodies at all if bodies are necesary to fully enjoy heaven? Or if heaven consists even partly in fulfilling the sort of bodily desires you’re discussing?
Bodies aren’t necessary, but our bodies ARE, like our souls, created in the image and likeness of God and an integral part of the human person. They are valuable in and of themselves for this reason, not just for the things they do or perceive.
But the desires of a GLORIFIED body are NOT the same desires as those of an ordinary human body - how could they possibly be? What need had Jesus, once risen and immortal, of rest, for example?
Which would suggest, to me, that my wife will be even more beautiful in heaven.
There will be no marrying nor giving in marriage in heaven. So your wife won’t mean the same to you as she does on earth, certainly.
And all glorified bodies in heaven, being perfect, must also be perfectly attractive, and not just your wife’s.
I think this is the crux of the matter. I could say, for example, that if you go to the grocery store you will not hunger. That does not mean that you do not need to eat the things in the store to avoid hunger. It means, rather, that the store provides a bounty of things to satisfy your desires.
Again, you’re suggesting that God in and of Himself isn’t enough to fulfill our every need and desire. How can God possibly not be sufficient in and of Himself for us? He IS all good.
Our human desires (food, sex, etc) aren’t ends or goods in themselves. They are all pale imitations of the things that we REALLY desire (fullness of God’s grace and the Holy Spirit, perfect communion with Him and so on) and will receive in Heaven.
That’s why St Catherine of Siena could live on just the Eucharist alone - having Jesus, the bread from heaven, she needed no earthly food.
More importantly, perhaps, is the distinction between hunger and desire. Do you believe that there is no desire in heaven?
Knowing God, we will know that He and His presence alone fulfills all desires, including those desires that we try to fulfill (and only imperfectly succeed) with lesser goods - food, sex and so on. We won’t desire anything but Him and His presence.