Why can't Lu Ban's book be read?

Lubanshu, also known as "absence from class", is said to be who studies and who takes it? Widowed, widowed, lonely, lonely and disabled? On the one hand, the secrets recorded in it are too mysterious, and there are ways to make large-scale combat equipment, which may bring disaster to both individuals and the court, so this book has been banned for generations.

Speaking of Lu Ban, he was a representative of Mohism in the Spring and Autumn Period in China and the founder of Chinese carpenters. In that war-torn era, Lu Ban wanted to pass on his skills, so he wrote "Lu Ban Shu" to pass on the mantle and wrote all his lifelong skills. The Book of Lu Ban is divided into two volumes, which not only records Daoism and Dafa, but also records various medical spells, involving Daoism and magic, as well as the production of many instruments and organs. But before practicing this book, you must be in? Widowed, widowed, lonely, lonely and disabled? The choice of these five things is the same, so this book is also called "Missing a Door". Over time, few people practiced, and it was listed as a banned book in all previous dynasties, which was lost for many years.

Lu Ban's books can't be read casually in folk stories. What if they are? Don't learn luban art, don't read luban books? There's a reason. It is said that Lu Ban was newly married at that time, but he went to the military camp because of the war. He missed his wife at home, so he made a wooden kite. With the spell, the wooden kite can take him home to see his wife. His wife is very curious about it. Once, when Lu Ban was away, she read a spell to let the wooden kite take her to heaven. Because it was amazing and exciting, she was pregnant, and her stomach ached and she bled a lot. Blood broke the spell. Lu Ban regretted this and put a spell on Lu Ban's book, which is also the reason why Lu Ban's book can't be read casually.

You all know the story of Lu Ban building a ladder to attack the city. The ladder is just a trick in Lu Ban's book. There are many ways to make combat weapons in the book. For the imperial court, if it is leaked, it will bring disaster, so it should be banned. What a pity!