In my opinion you’d be better off spending an hour with this video from Randy Acorn on Heaven/the New Earth than many hours with the “I died and came back from Heaven” books/movies. He examines many questions from a Biblical perspective including:
- Should we call the New Earth Heaven?
- What & Where is Heaven?
- Is there time in Heaven?
- Do we forget this life after we die?
- Will we have a physical body after the resurrection?