The Elimination of The Six Sense Bases is The Elimination of Discontentedness

Monks, the elimination, subsiding, and passing away of the eye … of the ear … of the nose … of the tongue … of the body … of the mind is the elimination of discontentedness, the subsiding of sickness, the passing away of aging‑and‑death.

Monks, the elimination, subsiding, and passing away of forms … of sounds … of odors … of flavors … of physical objects … of mental objects is the elimination of discontentedness, the subsiding of sickness, the passing away of aging‑and‑death.

(Reference: SN 26.1 and SN 26.2)

In this Teaching from Gotama Buddha, he shares that through the elimination of The Six Internal Sense Bases (i.e. eye, ear, nose, tongue, body, mind) and The Six External Sense Bases (i.e. forms, sounds, odors, flavors, physical objects, mental objects) that there is the elimination of discontentedness, sickness, aging, and death.