书: Books, repositories of knowledge, embody wisdom. They express art and literature, convey profound thoughts, facilitate emotional expression, and are adorned with literary elegance.
愉: Harmony and joy, a life of refined elegance and honor. With exceptional talents and a prosperous official career, though modest in wealth, one enjoys a lifetime of bliss and contentment.
Meaning: Knowledgeable and joyful, embodying wisdom and happiness.