This book was written for Qianye (Qingqiu Qianye) who changed my thoughts on cultivation, because the series of cultivation articles she wrote changed my thoughts on the subject of cultivation and let me know that cultivation can also be written easily.
Rather than making money by posting an article, the greatest significance of this article is probably to express my deep gratitude to Qianye. If it weren't for her, I would never try to write an article on cultivation topics in my life.