would we want to live for ever?

Not wanting to live forever is no reason to not believe in afterlife =)

It would be like believing in god because you do not want to believe that you are alone (which is something a lot of people do, actually).

So I personally don't see how we could exist for ever, there are just too many problems with it. Like how does one exist. On earth we require food to sustain our bodies which is energy. Well where does the energy come from to sustain your heaven body? Do you have to eat, do you expel waste? Do you just magically exist?

Where did the energy that created the universe in the beggining came from? If energy was continously being lost, then existence itself would be impossible.

I dont think we will ever find an infinite energy source, but we will find things that are pretty much that. Like the sun. If we could properly harvest its energy, all our energy problems would be solved for millions of years.

But my point is, how would an ethereal person obtain energy to function? I think a lot of people who believe in ghosts or after life spiritual bodies neglect to think of this. I guess they claim that a spiritual body does not require energy but it can do stuff anyways. Not to mention they think that those spiritual bodies would also have networks of nerves in them as well. What do I mean by that? Well a spiritual body that is being sent to hell to suffer couldn't feel pain without nerves. So they would have to have a nervous system otherwise you wouldn't feel pain at all.

That just seems silly to me that you would have a spiritual body with the ability to feel pain or pleasure. Then on top of that, you retain all your memories? How, when memory is actually a physical thing retained in your brain. How is it that the spiritual body can retain memory? It wouldn't be able to because if it could then you wouldn't even need physical matter to remember anything but clearly that is not the case.

But I guess an even broader question would be, why create two completely different realms of existence then? Why create one where everything depends on physical properties to exist and then have another where nothing relies on physical properties? With that it doesn't even begin to answer if you would still require certain things, like sleep, or do you wear clothes? Do you have hair and does it grow? Or can you magically create any hair style you want at any moment? Why would you even need it then? Seems a little silly.

Manored asks: "Where did the energy that created the universe in the beggining came from?"
A s deep as that question may be, I don't think it needs to be asked, because no answer is possible.