The Jade Emperor of Shang Gao printed a wonderful sutra on his heart, which was about how to cultivate his Yuan Dan method and the spiritual three treasures in his body.
Zhouyi Shentongqi is the first choice for Taoist meditation. However, the wording is old and difficult to understand. I suggest you go to the bookstore to buy Nan's I Say Magic, which is very classic.
What the above brother said is too inducing. Mainly a good book to persuade people to do good. You can also watch.