A MoodMap describes your mood, visually and at the moment, You can use MoodMaps to track how you feel over time, to track what makes things better and what makes things worse.
Most importantly, you do not need to be able to describe how you feel in words, you use a picture, which is your MoodMap. Above all, it is a practical tool. One of many that you need in your toolbox to help keep yourself on the rails, going in the direction you want.
It is hard to manage what you do not measure