I have been following my grandfather for eighteen years to learn the Taoism taught by my family. I have never failed to draw talismans, step on the Gang, and memorize incantations. In my heart, I have never believed in the theory of ghosts and gods. I just regard it as an old-school obsession that my grandfather has maintained all his life, and it is an old feudal trick that deceives people. It wasn't until my grandfather was critically ill and lying on the hospital bed that I realized that he only taught me the superficial skills and never taught me the core. He never taught me anything to hide, but he was just afraid that I would touch the forbidden arts and lose my life in vain.