restless, melancholy
氉 centers on an unsettled inner state: restless agitation or a heavy, melancholy mood. Both meanings describe a person who cannot find calm.
氉 combines 喿 (a component associated with noise or agitation) and 毛 (hair), possibly suggesting hair standing on end from restlessness or emotional turmoil. The exact historical development is uncertain.
The left side 喿 looks like a noisy, agitated cluster of mouths (口) in a tree (木), and the right side 毛 is hair. Imagine your hair bristling from restless, melancholy thoughts that buzz like a swarm of voices.
For ソウ, picture your soul (ソウ) feeling restless and melancholy, with your hair (毛) standing on end from the inner turmoil.