Literature Reference: 樵苏封葬地，喉舌罢朝天。—— 《哭李尚书》 Cutting firewood and grass for the burial ground, the voice ceases to face the court. Source from 'Kui Li Shangshu'.
樵: Firewood Gatherer: Woodcutter. Timber Seeker.
苏: Alleviate, relieve.
Meaning: Cutting firewood and grass symbolizes simplicity and diligence.