I was on a crowded bus recently and for some reason I thought to myself, in 100 years from now, everybody on this bus will be dead, and we'll be replaced with a new set of people.
I also think about how we're essentially just dots on one of many planets.
I suppose it helps me to take life less seriously, because one day none of it will matter at all.
It's morbid but I sometimes say to myself that we're all in a permanent state of dying from the moment we're born. Essentially we start rotting away after a certain age.
They're quite depressing but also comforting thoughts in a way that make me realise small things don't matter.