With the Elimination of Excitement There is the Elimination of Discontentedness

Punna, there are forms recognizable by the eye…sounds recognizable by the ear…odors recognizable by the nose...flavors recognizable by the tongue...physical objects recognizable by the body…mental objects recognizable by the mind that are wished for, desired, agreeable, and likeable, connected with sensual desire and provocative of craving.

If a Monk does not experience excitement (pleasant feelings) in them, welcome them, and remain holding to them, excitement is eliminated in him.

With the elimination of excitement, Punna, there is the elimination of discontentedness, I say.

(Reference: SN 35.88)

In this Teaching from Gotama Buddha, he shares how the elimination of excitement (i.e. pleasant feelings) leads to the elimination of all discontentedness.

Because of sensual desire, the mind is longing, yearning, and obsessed with seeking pleasant feelings through The Six Sense Bases. As long as the mind continues to do this, it will experience discontentedness as the conditions that create the pleasant feelings are not permanent and it is only a matter of time before painful feelings or feelings that are neither painful-nor-pleasant will invade the mind.

Through training the mind to eliminate craving/desire for pleasant feelings, the mind will then also eliminate painful feelings and feelings that are neither painful-nor-pleasant.