Tang Gu's son had planned to move away with other villagers, but since his old father was determined to stay, …
Tang Gu's son had planned to move away with other villagers, but since his old father was determined to stay, he couldn't bring himself to leave him alone. So he took a job digging irrigation channels and stayed behind to care for his father. The work went on day and night, and it pained Tang Gu to see his son working so tirelessly. His son comforted him, saying that no matter how hard the work was, as long as he could have his father's soaked rice, it was all worth it. Touched by his son's devotion, Tang Gu often brought fresh soaked rice to the canal workers. The cool, tasty soaked rice was filling and quickly became popular with the soldiers and artisans. So, Tang Gu set up a stall by the canal to serve them.