Literature Reference: 笏，礼器也，用以记事。—— 《礼记·曲礼上》 The 'Hu' is a ceremonial instrument, used for recording events. Source from 'The Book of Rites'.
笏: The ceremonial tablet held by ancient ministers during court audiences.
Meaning: The 'Hu' symbolizes ritual, power, and nobility, a ceremonial instrument held by officials in ancient times.