what is death?

when i first had the concept of death explained to me, i cried. i was 7 tho so that makes sense. however, since then, i've always wondered what happens after death. 

some say that death is the ending of all life, but what if they're wrong? i feel like there has to be more to death than just having nothing after it. for me, i think death removes the restraints the human body sets on the soul. maybe you'll be able to learn what the universe truly is. maybe you can travel wherever your loose soul desires.

 i think that when you die, you may also see things that you want to see; i've heard of people dying for a short amount of time and claiming to see jesus but i think there's a scientific reason for this; deathbed visions are a thing. 

of course, when dead, you technically aren't alive anymore. however, i think you can continue living, even without a body. 

another theory: when you die, you will have to re-experience your life and feel the things you put onto other people. i think my other theory is more solid though tbh. the other theory feels more neutral to me, so it feels more likely. 

i'm curious as to what other people think about this so feel free to talk about it nicely ^_^