Literature Reference: 五女誓终养，贞孝内自持。—— 《宋氏五女》 The five daughters vowed to care for their parents till the end, upholding chastity and filial piety from within. Source from 'Song Shi Wu Nü'.
贞: Loyalty and steadfastness. Often used in conjunction with unwavering devotion, it signifies remaining true to one's cherished principles with resolute determination.
孝: Filial piety and integrity refer to being a dutiful child and maintaining incorruptibility.
Meaning: Chastity and filial piety symbolize noble virtues and family responsibilities.