I think it feels just like it did before you were born. Like when you're under for an operation or fast asleep. You just cease to exist to yourself. It's nothing to be afraid of.
I'm afraid of knowing I'm going to die, like most people are, and dying in agony from being tortured. But I don't really think about it or spend any time worrying. Actually being dead, that's okay with me.
I find it kinda comforting death is a great unifier. We're all going to die. Every last one of us. That helped me when my mum died. It wasn't some great awful tragedy that she died per se, as she was gonna die at some point anyway and all of us left will die too. It was a tragedy she died so soon (I was 22, still needed my mum), but it really helped to remind myself it's inevitable for us all.
My mum was very chill about death, she worked in an elderly care home and dealt with it and dealt with dead people regularly. She told me the person just becomes a shell. When I visited her body in the chapel I realised she was right. My mum wasn't there anymore. Just the vessel for her.
It'd be comforting to believe in an afterlife, I believe that's why people do, because to comprehend that our whole life amounts to nothing for us is so painful. But as an atheist I can't make myself believe there's anything. We just die. What I've realised is that if we can live a good life and make a difference to others, that's the best life possible. And when we die, everything we did wasn't for nothing. It passes on. If you can live on in the memories of people who loved you that's such an honour. It doesn't have to be your kids necessarily. If my mum hadn't fought addiction and died while I was so young I don't know if I'd have had the drive I do to help others. It taught me so much and gave me such respect for people with mental health and substance abuse problems that I went to volunteer in a prison rehab within a few months, got experience, went back to uni to become a profession that helps others, and I dedicate my life both in my job and my voluntary work to being there for others when they're in their darkest moments. As I know if I was in that place (I've been there) I'd want someone there for me.
So... I guess I'm trying to say, if you're lucky your influence lives on. None of the people I've managed to support or help over the seven years since she died would have got that help from me if it hadn't been for my mum. And I still talk about her and consider what she gave me and the lessons she taught me, she shaped me.
If you try be a good person and help others and stand up for people who need it and raise your kids well and volunteer in the community and ask crying strangers if they're okay, then you'll have such an influence on the world you have no way of knowing. In my voluntary job on a suicide line I must have taken thousands of calls over the decade I've been at it. And who knows what that did for those callers? Some outright say that it's saved their life or changed it, I'm not narcissistic to think if I wasn't there another volunteer couldn't have done a brilliant job too but sometimes the stars align and you are glad you were the person who picked up the phone. I'll never know what impact it had but if I died tomorrow at 29 I'd feel I'd done my best in my short life to make the world a better place. That's so much more important, for the living, that I'm fine with ceasing to exist.