I am often thinking about my own mortality, and death in general. I often am confused how we are all brought into this world by our parents, then they age, die, and then they are gone forever.
My own mother died when I was early teens. It was my first experience of death of someone close to me. Just to think I had that relationship and connection to that person for years, only for her to get sick and die, then her existence was no more.
Death is natural, of course. I think it's the fact that we build up these relationships with people over a long time, then when they pass it feels like a massive gap in your life is gone for good.