The Whole World Is Martial and I Have My Own Way

Once he traveled through time, he became a beggar. Martial arts are prosperous and demons are rampant, but I am judged to be unable to practice martial arts for the rest of my life because of my poor bones. Everyone respects martial arts, but by chance, I found an introductory manual on Taoism and activated the Taoist system. Drawing talismans to summon spirits, reciting mantras to drive away evil spirits, looking at the Qi and pulse, and applying magic to suppress evil spirits. I use talismans to determine the universe, and I use Tao and Dharma to cut off illusions. Since there are Taoist books preserved, why am I the only one in the world who can inherit Taoism?