I think the whole idea of an afterlife or reincarnation is built around the belief that humans are somehow unique and that there is some process in the universe that specifically caters to humans, but I'm fully convinced that that's bs. There is no reason to believe that after death comes anything other than complete nothingness, but since it's inconceivable for a person to imagine this state and since many people would like to believe in some kind of cosmic justice (ie. a murderer being reborn as a worm) or in a life without pain (heaven) they began creating ideas of things that may come after death.
All kinds of religious experiences, NDEs, "sensing" deceased loved one's spirits etc. are influenced by one's cultural upbringing, which is why even atheists may have such experiences. All of these ultimately stem from our brains and since they die with us the most likely outcome is that it also means the end of our consciousness. There is no reason to believe otherwise, as there is no evidence for things like souls, and the various religions of the world, most of which claim to contain the one and only ultimate truth, are all contradictory to each other, which leads to believe that they must all be wrong.
That doesn't mean though that I look down on people who think there is something that comes after death. It's extremely comforting to believe that you'll be reunited with your loved ones if you wish that or be reborn as something awesome and I personally like to imagine what my perfect afterlife would be like as well.
I believe if there is some kind of "afterlife" or "god(s)" it would be nothing like what humans have imagined there to be. I still think there will be nothing after death though. The idea of nothingness is scary of course, but I try to remind myself that you won't be scared once you're dead.