Bound character: it lives in 朦胧 (hazy, dim, blurry), used for moonlight, mist, sleepy eyes, and vague feelings. Note the moon radical 月 - think of soft, blurred moonlight.
Left-side moon radical 月 (the moon 月, not the flesh element). Dim, hazy light is classically the light of a clouded moon, which is exactly the image in 朦胧.
