More joy.
A brain takes a lot of energy and emotions.

Try this exercise during the day: more the point of "self" to the back of your head and from there "just see" the world, without judging.
If you are really in the back part of your head it will be easy because that part of the brain is "visual cortex" and it just cannot judge, it just observes.

And in some period of time you may start thinking by quick but complex visual images not verbalized thoughts.