As we cats all know, humans have extraordinary and rather wonky dysfunctional brains. They keep thinking about things that might happen but never do.
Their brains move forwards and backwards in time, instead of staying in the present. They therefore worry about the future (which probably doesn't happen) or they become anxious and unhappy about the past (which is over and done with.)
They also create in their minds curious and unlikely fantasies. My human is currently becoming obsessed about the death of a former cat, Mr Spangles. Not only does she miss him and want to cry, but she feels she has to do something about his death.
She spent a lot of money getting his body cremated. Now she is wondering if she should scatter his ashes in her small town garden. Or should she bury them and put up tombstone somewhere in the garden?
Then she worries about what will happen if she has to sell her house. Will new humans living there respect his tomb? Will they pave over the grass that hides his ashes?
Currently she has put the ashes in a cupboard with the ashesof her previous cats, and also (this will make fellow cats laugh) with the ashes of her husband Ronnie. They sit there but will her relatives know they are there?
She wants to be buried in a country churchyard with all those ashes even though some of Ronnie's ashes are missing, as she scattered a handful up and down Fleet St.
Can you imagine how much brainpower is being wasted on these thoughts. And these pointless thoughts make her unhappy. If she was a cat, she would just go out and catch a nice mouse for her dinner instead of having these ridiculous ruminations.
But that is the human brain... They really are a very weird species.