sincere, nourish, encase
孚 centers on a sincere, nurturing protection: to nourish and encase something with genuine care, like a parent sheltering a child.
孚 combines 爫 (a hand from above) and 子 (a child), suggesting a hand sheltering or nurturing a child. This conveys sincerity and protective care.
A hand (爫) reaches down to gently encase and nourish a child (子). This sincere act of protection captures the essence of 孚.
For フ, imagine a parent saying 'Foo!' softly while playing peek-a-boo with the child under their hand: 'Foo' -> フ, a sincere, nurturing moment.
zhong fu (hexagram 61 of the I Ching: inner truth)