Jesus is alive (1 cor 15:4)

1 Corinthians 15:4

... he was raised on the third day

Jesus is alive. Death couldn't hold him. No one else has conquered the grave. Because of that, anything that anyone else says about what happens when you die is just speculation. Jesus died and returned and He is not just speculating, we know that our future is resurrection with Him. Because He was raised we know that his sacrifice was effective, our sins are forgiven, it is finished, we are no longer wondering whether we have pleased God because we know Jesus already has. Because Jesus is raised we don't need to be afraid because we see his power that conquered Satan, sin and death and that same power is with us.

Every other "great" religious or political leader is dead or will die. Jesus is alive!