If you are worrying about tomorrow, you can't possibly enjoy today. Think about it: you can't really give God tomorrow; you can give him only what you have, and today is all you have.
Bible prophecy helps us to better understand the future and realize the urgent need to spread the Gospel. It motivates us to personal purity and gives us hope in a hopeless age.
Most of all, I believe God has chosen to bless this series. In doing so, he's giving the country and maybe the world, one last, big wake-up call before the events transpire.