insanity, headache
瘋 centers on a disordered state of the mind or body, specifically insanity or a severe headache that feels like a storm inside.
瘋 combines 疒 (sickness) with 風 (wind), suggesting a wind-like disturbance causing illness, particularly mental disorder or headache.
The sickness enclosure 疒 wraps around 風 (wind). Picture a wild wind trapped inside the head, causing insanity or a pounding headache.
For フウ, imagine a strong wind (風, ふう) blowing through a sick person's mind, making them insane: 風 -> フウ.
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