Allegedly the world will end, or at least be the beginning of the end, sometime tomorrow. I haven't put much thought into why Mr Camping thinks May 21st is the big day. It's pretty much irrelevant.
Let me say it again:
Whether or not the Rapture occurs on May 21st is IRRELEVANT.
In my experience only two kinds of people worry about the rapture, the end of the world, whatever, with regard to a specific date. One, there are those who fear the coming of the end, primarily for themselves. Not always because they fear eternal damnation, but because they fear the loss of the things they know and love. The other type looks forward to the end of a world they cannot understand and perhaps enjoy the idea of people who have wronged them getting their just rewards.
They both miss the point, although the oblivionists less so. One day, the world will end. Whether that is tomorrow or two thousand years from now makes no difference to me. It only matters to anyone in as much as you may have another day's grace to work out your own salvation. But even if the Big Day is called on account of idiocy, you personally may not get another. Anyone, at any time may get hit by the proverbial bus. ANY time. Think about that.
Who do you need to apologize to today? Who do you need to show, not just tell, your love to? Have you gotten your heart right with God? You may not even make it til tomorrow night. The time to get yourself straight is now, rapture or not.
I won't be waiting up tomorrow night. I feel pity for those who will be sorely disappointed Sunday morning. That will be when the true test of your "faith" is. If you are convinced Camping is right, and excited about the end, one way or another, you need to take a long hard look at why that gets you so worked up. It may not be the reasons you are telling yourself.
As for me, the rapture is welcomed anytime.