All through the ages, man has speculated about life after life. Dante’s Divine Comedy seeks to describe it. Modern medical science has added to the speculation with its study of near-death experiences. Now all kinds of religions offer their theories.
But, the greatest evidence of life after life is in the historical evidence that Jesus rose from the dead. Christianity is the only faith founded by a man who died and came back to life. No other religion makes that claim.
Historical accounts of His appearances to His disciples, and over 500 people at one time, were written within twenty years of the event. His disciples faced martyrs’ deaths for refusing to quit preaching of His death and resurrection.
People don’t willingly die for something they know is a hoax.
The one thing that would have stopped Christianity in its tracks would have been for Rome or religious authorities to produce the dead body of Jesus. They never did. The best evidence of life after life is the historical evidence of Jesus’ resurrection.