In my case i don't believe in non-existence, from a human standpoint i can't understand not existing because of the human ego, but even if it's just a perception of my human ego, nonexistence from an external viewpoint doesn't makes any sense at all. Just because you don't remember your previous existence doesn't mean you didn't exist before being born into this current life. How can one just not feel anything anymore for eternity? Not even waiting in darkness, but a timeless, sensationless existence? And i mean sure once you're strapped from the human ego the perception of your own consciousness/soul might change how you perceive time, sensations...etc, so what feels like 80 years to you might look like just one second when perceived by your consciousness and that is taking into account a 3 dimensional universe where time is linear and has a set of rules...but i believe the soul moves towards other planes of existence once the Physical body dies and eventually after a while you'll get reincarnated again (hopefully in a much better world than this hellhole)
Oh well, back to the point, i don't believe in nonexistence, i don't believe there's a heaven (christian definition of heaven) but the buddhist approach is one that i hold tight. We reincarnate in this hell/Samsara cycle till we achieve enlightenment and lose any attachment we could have with this world in order to finally escape from this prison.
I am sure that after Death is non-existence forever. And to me that is the best thing. I had enough of life and existing. I want to forget forever the horrors inflicted upon me in this life . I don't want to remember the horrors and trauma foreever for trillions of quadrillions of years. That would be a torture a billion times worse than I can imagine. I think many on here also had enough of life or want to forget . Non-existence forever will allow me to solve all my problems forever never any pain , and to forget forever the problems , horrors , tortures , traumas , injustice , pain , suffering inflicted on me by others , this world and by life itself . After Death / non-existence forever all the horrible memories the traumas the evil this evil life will be irrelevant to me gone forever that is resting in Peace = Death.
Then religions and others want to tell me that no I can't Rest in Peace . These relgious people by telling me i have to remember the horrors forever are inflicting more trauma and suffering on me because I like many want to forget the horrors of this life. Non-existence is the ultimate bliss never pain never suffering to forget all problems , troubles, traumas evil horrible things happening against me forever. Religious people say that no there is really no Death that death doesn't really exist you just transition to another stage or life or whatever which is Denial of Death . These religions or psuedo religions say that I can't really die that I have to live trillions of trillions of lives more or years or whatever they are saying , without any scientific evidence and that I am supposed to be happy about that. What am I supposed to be doing for trillions of years remembering the horrors of this life ? who or what would torture a being like that for trillions of years after "creating" them to suffer unbearable pain in this life? for what purpose? I see none.
I'm just an animal that needs to eat 3 times a day just to power this weak brain and body and then to work so hard every week 80 hours just to do this and exist . . To me it doesn't matter what others believe or that they want to have afterlifes that is their business but to me living or existing for trillions to the quadrillion power years and beyond to infinity is a horror that is worse than I can imagine . I want no more. i have had much more than enough of this torture called life. Why would I want to be trapped in the body of an animal or to even exist. I see no reason. Just because the DNA molecule replicated 4 billion years ago is why I'm here .I think all religions are fictional tales other humans made up to control other people. I'm an atheist. I'll never change these beliefs. There are thousands of reasons why. Just some are that drugs or injury to the brain change the character and who the human is. Then there is neuroplasticity . The brain changes learns. I'm not the same person I was a age 1, 2 , 5, 10 years old , 15 years , 20 years and so on. At age 5 I had different thoughts beliefs consciousness intelligence etc. I've tested a lot of the research on memory , habits and others from Brain science, psychology , the cell, neuroscience and many others. For example one can look through a microscope and see a human is just cells, the cells are exactly the same in every animal , the eukaryotic cell. I don't see where is the power source or a reason for a god a soul spirit anything supernatural . . I we are the continuation of a chemical reaction that occured 4 billion years ago when the first DNA molecule was able to replicate.
Nothing in biology makes sense except in the light of evolution. Consciousness is no exception—it seems nonphysical, but is very much a biological phenomenon.
www.psychologytoday.com
Neuroplasticity, also known as brain plasticity, is the brain’s ability to change as a result of experience. Learn how it works and how the brain can change.
www.verywellmind.com