Just as you rightfully pointed out, having control over the kind of thoughts we allow ourselves to dwell on is of great importance. People that are always depressed, who feel that people hate them and that bad things will surely happen to them are people that allow such unhealthy thoughts to dwell when it comes to their mind. I wonder why someone will spend time having such thoughts than using it to imagine fun-filled stuffs.

I enjoyed reading your post @dedicatedguy.