I believe life to be the flow of energy, therefore heaven and hell are here now. Philosphers state that the amount of energy does not lessen or grow, but changes; as a bullet through an apple.
The compulsive energy through the barrel transforms the lump of lead into a missile, which hits the apple. This energy is transferred from the gun to the apple, which blows the fruit across the room.
Our bodies are as molted skins to a snake or tarantula; once we outgrow them, we shed them and find a fitting place to exist. From here, some believe we go to heaven and others believe we are reincarnated, while still some believe everything stops. (The last one would disprove many philosophers and the "energy theory", wouldn't it?)