Literature Reference: Though the years of chiseling walls may differ, the shared aspiration to hit the mark remains the same. Source from 'Song Chen Fang Ye Fuzhou Zhou Shijun'.
凿: Piercing, excavating. Chiseling through the wall to steal light.
壁: Walls, barriers.
Meaning: Chiseling walls symbolizes diligence and perseverance, representing hard work and determination.