The long and short of it is that we need to be ready whatever happens because there are no guarantees in this life except that it will end.
Life on this earth will end, and it scares people, even me to an extent.
Although I know a better life awaits on the other side of eternity, all I know only this life, this existence, so far, and I guess it's fear of the unknown that scares me. Even though I know what the Bible says, and I have faith in God to keep His promises, His Word, the flesh always wars with the spirit and those fears have never been completely wiped away.
Does that make sense? Sometimes I wonder if I'm coming across in a coherent manner. :-)
This is the answer.
If the Rapture happens, and I believe it will, then we're in Heaven.
If it doesn't, and we have to undergo persecution, then we best be ready.
If the latter happens I think there will be a thinning of the herd so to speak. There will be many who will deny Christ....they were never believers to begin with.
If a person isn't relying upon Christ...and only Christ for their salvation, now would be an excellent time to start.