Literature Reference: 东书常念旧，西渚独寻幽。—— 宋· 陆游《东书》 Recalling the past in the east, seeking solitude in the west. Source from Lu You's 'Dong Shu'.
东: The East, the direction of the sunrise, symbolizes the essence of hope.
书: Books, repositories of knowledge, embody wisdom. They express art and literature, convey profound thoughts, facilitate emotional expression, and are adorned with literary elegance.
Meaning: Dong Shu symbolizes the book of the east, representing wisdom and knowledge, embodying erudition and diligence.