I was raised to believe in life after death. I was taught when people die, they go to sleep, and are awakened when Christ returns. The good are awakened when He returns the second time, and are taken to heaven. The evil are awakened when He returns the third time, and are destroyed with the Earth. Then the New Earth will be remade, and the good will dwell there forever.
Though my religious beliefs have changed, I still believe in life after death. I have read lots of stories of near-death experiences that support this belief. I have my own experience towards this end; I once heard someone's voice when I was on my way to visit him in the hospital. When I arrived, I discovered he had died 3 hours earlier. Later, his brother told me when he got the call from the hospital, he had immediately driven there, and he heard his voice saying, "Tell mom I'm in a better place."