Sorry, but your ‘long explanation’ is no clearer than the story you wrote. You or I may not be alive when this is seen but I think everyone, not just ‘Christians’, knows that no one knows when they’ll die. Many Christians also believe that Heaven is where they’ll rejoin their loved ones but nothing in the Bible says that. In fact, Paul explains that it’s not true. too few ‘Christians’ bothers to actually read the Bible or ignore what they read.