Literature Reference: 恒者，久也；怀者，念也。——《说文解字》 Heng means enduring; Huai means cherishing. Source from 'Shuowen Jiezi'.
恒: Eternity, unwavering perseverance.
怀: Yearning and reminiscence, here signify family harmony and mutual care.
Meaning: Enduring cherishment and deep affection, symbolizing perseverance and profound love.