Jehovah's Witnesses are taught that they will live "forever" on Paradise Earth.
Let's say the year is 278,486 (assuming Armageddon occurred in 2003). The Millenium has passed, everyone has been resurrected, and Earth has become the true paradise the JWs predicted.
Only one problem: You've done everything there is to do. You've gone every place on earth there is to go. You've met every other person on earth there is to meet. You've been alive for almost three hundred thousand years, and death is no more. You cannot die!
What will be your mental state?