We live in a world that has an enormous amount of sorrow, pain, suffering, and affliction. Among even the Saints we find all manner of diseases, troubles, pains, and tragedies.
Is there anything to learn from these afflictions?
Yes. They are reminders to us. They remind us of what we have not yet lived up to. When Christ came among the people he healed their infirmities. When Christ came to the Nephites, we read:
3 Nephi 17: 6 And he said unto them: Behold, my bowels are filled with compassion towards you.
7 Have ye any that are sick among you? Bring them hither. Have ye any that are lame, or blind, or halt, or maimed, or leprous, or that are withered, or that are deaf, or that are afflicted in any manner? Bring them hither and I will heal them, for I have compassion upon you; my bowels are filled with mercy.
8 For I perceive that ye desire that I should show unto you what I have done unto your brethren at Jerusalem, for I see that your faith is sufficient that I should heal you.
When Zion was built, Christ came down and lived among them before they were taken to heaven.
Surely he healed their afflicted just as among the Nephites and in Jerusalem. Surely they were raised up as calves in the stall. A fallen world was not worthy of them, and they were taken to heaven only to return when Zion is again built on the earth and when the earth itself will be redeemed and become again the glorified paradise it was before the fall.
The lesson here is that the suffering of a fallen world is not a necessity. In fact, when a people build Zion, the Lord eventually frees them from such pains and afflictions. The afflictions of the fall are a reminder, a prick, a thorn to remind us what we have fallen from, and what it will mean to us to truly repent and live up to what the Lord desires for his people.
This is no hypothetical scenario. It is what happened to the people of the city of Enoch.
It is what happened to the people of Melchizedek, and that is why we call the Melchizedek priesthood after his name. We use his name to remind of us of what Melchizedek did with a city full of all manner of wickedness.
And it will happen again before Christ returns. It is our own, known destiny when we will but repent and live up to it.