This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 睤 is uncertain. It visually combines 目 (eye) with 畀, but the original semantic and phonetic roles are unclear.
The left side is an eye 目, and the right side 畀 looks like a field 田 with something above. Picture an eye looking out over a field, but the meaning is uncertain.
For ヘイ, imagine an eye 目 looking at a hay bale in the field: hay -> ヘイ, though the meaning is unclear.