WHY DO WE EXIST?

We are born and DING here we are without any clue as to what this is. What is this thing we are experiencing and why am I here? It doesn't make any damn sense. How can anyone carry on and do anything as if they know what they are doing when nobody knows what this is. This existence is a prision, we are all very confined and unaware of what else there is. Either that or there isn't anything else, this is all there is and we will cease to exist upon death. I would gladly die now if that is the case.