Literature Reference: 瑶函秘笈，珍重珍藏。—— 《文心雕龙》 The precious scrolls and secret tomes are treasured and protected. Source from 'Wenxin Diaolong'.
瑶: In names, it often symbolizes beauty, preciousness, brightness, and purity, conducive to prosperous fortune and a splendid life.
函: The term refers to a letter and its envelope.
Meaning: Treasure letters or books symbolize wisdom and nobility.