look at, inspect, observe, see
眎 centers on using one's eyes to take in information: looking at something, inspecting it, observing, or seeing.
眎 combines 目 (eye) with 示, which likely contributes a phonetic element. The character is a variant form of 視, sharing the same meaning of looking or observing.
The left side is an eye 目, and the right side 示 looks like an altar or display. Picture an eye inspecting an object placed on display: 眎 means to look at or observe.
For シ, imagine seeing a sheet of paper being inspected: sheet -> シ, and your eye 目 is looking at the displayed 示 sheet.