Literature Reference: 买药经年晒，留僧尽日棋。—— 《闲居》 李远 Buying herbs dried for years, and spending whole days playing chess with the monk. Source from 'Idle Dwelling' by Li Yuan.
留: Stay. Accept. Preserve.
棋: Playing the qin and engaging in chess.
Meaning: Retaining chess symbolizes wisdom and strategy, signifying a thoughtful and unhurried approach to life.