I just don't entirely know to be honest but I lean more towards there being nothing (and I find that thought more comforting.)
Plus, if the same 'God' that created this world had/has anything to do with the afterlife- I'd rather not partake. I don't like their management much! Still, maybe we don't get the choice...
Trouble is- I lost a lot of family members in early childhood, so I have grown up being told/comforted that they all live on in heaven. It's a lovely thought to have- and even better- that I may get to see them again.
On the flipside, a close family member also believes in things like hell/purgatory and a form of reincarnation. It's not been quite so pleasant growing up with those ideas around. Still- I also now pretty much believe our religions are manmade.
The other 'problem' that fights with my want to be aetheist is another link to a more spiritual side (although not religious in a strict sense.) My Nana used to love stuff like that and she was pretty insightful. For example- my Mum miscarried before she had me. My Dad tried to telephone her but couldn't get hold of her (no mobile phones in those days...) She was already on the way to the hospital because she could feel something was wrong. Plus, some other members of my family once did the ouija board and 'got through' to a distant uncle- of which only my Grandma knew about and at that point, she stopped 'playing.' They aren't the sort of people to lie, prank or exagerate- so- I think it's possible. I also had this weird experience myself once where I dreamt something that then happened weeks or months later in real life. I know it's not all related to life after death but it's enough to make me question things.
It's weird- on the one hand, I think there is a lot that is mysterious to this world. Not everything can be explained- especially when it comes to personal experience- that feels real but logically, can't be. Still, on the other- I know that there's the whole argument that science that is so advanced looks like magic- or spirituality- which also makes sense.
I'm very willing to accept that our sense of self importance has a lot to do with these theories of being immortal. I think we kid ourselves about heaven- to comfort ourselves. Then, we are told about hell and reincarnation to scare us into compliance.
From a practical point of view, I think a lot of what we consider to be our consciousness/sense of self/soul is just in fact a part of the function of our brains. Rather than something that can be separated from it. The traits we hope may live on- like our thinking and our memories are surely wrapped up in our brains- I would imagine that when our brains die- so do they.
Plus- they are elements that are not fully formed when we are born. We develop our personalities as we grow. I imagine the first few years of life are spent merely living on instinct. For me- that- and other things make me doubt reincarnation. If you are the same soul being recycled in order to learn a lesson, why wouldn't you be reborn fully aware and conscious? Plus, why wouldn't you remember all your past lives? I know some people claim to of course but it seems kind of rare.
Regarding NDE's, I personally think that they could well be dreams or nightmare's. I don't think it is possible to resuscitate someone after brain death. So- in all these cases- their brain was alive. I know I've had some crazy dreams- I also have this weird experience sometimes where I will wake up and 'see' stuff in the room that isn't there- just for a few seconds. Like dreams overwrite reality for just a tiny bit. (Scary- it's not usually something nice.) I just feel like- your body and brain is likely in a state of panic because they realise you are about to die. I suspect quite a lot of unnusual hormonne activity is going on which I personally believe could be a cause.
This article is interesting as a possible scientific explanation to NDE's:
Seeing your life pass before you and the light at the end of the tunnel, can be explained by new research on abnormal functioning of dopamine and oxygen flow
www.scientificamerican.com
Really though, I'm just undecided!