Maybe interesting isn’t the best way to describe this but it is thought provoking. The last words of Bill Zeller. You’ve probably never heard of him and it’s a long, sad read but worth making the effort for I think.
The number of people in the comments that have similar experiences is very sad as well. Then again I know – or suspect – at least two people I’ve known in my life have – or had – a similar darkness and maybe this makes me understand them a bit better.