to stare at
瞵 centers on staring intently, with a nuance of fixed, unwavering gaze.
瞵 combines 目 (eye) with 粦, which likely contributes the sound. The exact historical development of 粦 is uncertain, but the character is understood as relating to staring or glaring.
The left side 目 is an eye, and the right side 粦 looks like a complex, intense pattern. Imagine an eye fixed on that pattern, staring without blinking.
For リン, picture a staring contest where you must not blink, and the sound of a ringing bell (リン) marks the start: ring -> リン, and your eye stays locked on the target.