Wily is the main focus for that, and it's basically an allegory for mental health, and a journey of improving in attitude and outlook.

The 2 main things are:

-Learning to be okay with bad past experiences and to not let them taint your view of the world.

-Learning to cope with fear and anxiety of what MIGHT happen, and to accept that you can't 'solve' for life and stop every bad thing from happening. And that trying to always comes at a price.