Why would anyone prefer to go to Heaven or Hell instead of being immortal?
That's the whole question surrounding religion.
Nine times out of ten, the "whole question" surrounding religion, in spite of it being a life path, tends to be over "where we go when we die".
Naturally Christianity and most other religions would fear or revere the notion of immortality, as humanity gaining it would make us exempt from many punishments and, otherwise, as if the Gods of old.
I mostly wonder what religion's bound to transform into once "where we go when we die" becomes an obsolete question.
Are you a good person only when you know people are looking, or you are genuinely someone very empathetic?
Can't it be both?
1. Yes, but there is a clear distinction between physical and spiritual immortality. One could one day be made by mankind and the other is our true essence, given by nature/god himself. The spirit is our energy, our core, the thing that sparked inside our physical form to give us life.
Why do you even think such a question will ever be answered? This life might be just a test, to set apart people who are animalistic in their nature and spirits that are evolved, and evolving each reincarnation if there is such, until they are pure light and instead of reincarnating, they use their energy to help others living beings who are struggling in life. Who knows, anything is possible. Maybe some people's energy frequency vibes in such a way they are able to experience a whole new dimension after death which cannot be explained or described.
This is all speculation of course. But the moment you stop and accept that there is only this world, and after death there is nothing, you will be just like the people from the old days, that believed the sun circled around the earth and that was it.
2. You can be both, or just one of them, or neither. The point is, are you evolved enough to do good deeds willingly and being happy to help the other without having anything granted in return? If that is a yes, most likely, your spirit will be welcomed in Heaven.
Ho ho ho Walt Disney is anti-semite and a racist