The Old Carpenter's 'Nameless Wooden Box'

In a woodworking shop tucked away in a quiet corner of the old street, 84-year-old Old Song passed away. While his juniors were organizing his belongings, they discovered a exquisite wooden box, carved from top-grade cypress wood, in the bottom drawer of his workbench. Inside, it was filled with old candies that had long since hardened and expired, along with a letter full of guilt. This secret, hidden for over half a century, finally saw the light of day. Many years ago, Old Song was a hot-headed young carpenter. During a sudden factory fire, in his panic to escape, Old Song accidentally knocked over his colleague, Young Zhang, who was next to him. This caused Young Zhang to miss the best chance to escape, resulting in severe burns to both his hands, rendering him unable to pick up woodworking tools ever again. Old Song survived the fire, but the guilt and remorse gnawed at him like a venomous snake. He knew well that Zhang's family was poor and that his entire family depended on Zhang's craftsmanship for their livelihood. To atone for his sin, Old Song didn't run away. He gave up his promising future and stayed alone in this small town. For decades, Old Song remained unmarried. He worked day and night as a carpenter, anonymously sending most of his income to Zhang's family under the guise of a 'charitable relief fund,' silently covering Zhang's lifetime medical expenses and his children's tuition. Every day, Old Song would place a piece of candy, Zhang's favorite from his youth, into the wooden box, reminding himself never to forget the mistake he made that day. It wasn't until Old Zhang passed away peacefully in his later years that Old Song finally found peace deep within his soul through his silent companionship and devotion.