A feeling you can name is a feeling you can do something about. Unnamed ones just rattle around.

Naming turns a mood into an object you can hold. Unnamed feelings act on you from underneath, surfacing as a short temper or a flat afternoon you cannot account for, while a named one can be examined and answered. The word fixes nothing on its own. It does put the thing in front of you instead of inside the machinery.

When something is off, land on the specific word before doing anything about it. Say it to yourself, or write it in one line. Then ask what that particular feeling usually needs, which is often smaller and more practical than you expect.