What does Mount Tai mean among the blind?

Mount Tai in the middle does not refer to Mount Tai in Dongyue, but refers to the name of a disciple of the carpenter's ancestor Lu Ban. According to legend, Lu Ban said that he was ignorant of people. According to legend, a carpenter gave birth to a son, who was named Taishan because of congenital diseases. Due to the prevalence of carpentry at that time, the handicraft level and technical content of weaving bamboo ware were low. The craftsman sent his son to Luban's door to learn carpentry. At first, Lu Ban liked this clever and studious disciple very much, but later he found that Taishan not only learned carpentry, but also knitted bamboo wares in his spare time. He was furious at this and reprimanded Taishan many times, but nothing changed. Finally, he was fired by his master. A few years later, Luban saw a shop in the market, selling some utensils that combined bamboo and wood materials and manufacturing technology. Exquisite craftsmanship and practicality. I made a special trip to visit this outstanding craftsman. When Lu Ban came to the craftsman's house, he saw Taishan, who was expelled from the master school, welcoming him with a gift in one hand. At this time, Lu Ban said, "I don't know Mount Tai."