a sleep, to realize, to feel
覐 centers on a state of awareness that bridges sleep and realization: it can mean a sleep, to realize, or to feel. The meanings connect through the idea of a mind moving from unconsciousness to conscious perception.
覐 is a rare variant of 覚 (覺). It combines 見 (see) with 爻, which likely contributes a phonetic element. The character relates to seeing and perceiving, hence the meanings of realizing and feeling. The exact historical development is uncertain due to its rarity.
Inside the seeing eye 見, the crossed lines 爻 look like tangled thoughts. Imagine sleeping and then suddenly seeing through the tangle to realize and feel something clearly.
For カク, picture a person waking from a sleep with a sudden 'cock-a-doodle-doo' realization: cock -> カク, and the rooster's call makes you feel awake.