Specifically, this sentence by Ye Xiushan means that in bookstores, people can find the book Zhuangzi in the menu area. Zhuangzi is an important philosophical work, which contains rich philosophical thoughts and cultural connotations. Even in seemingly ordinary places, such as the menu area of a bookstore, you can find some valuable books and ideas.
This sentence also expresses a philosophy, that is, everything in life is interrelated, and both recipes and philosophical works contain the crystallization of human wisdom and thought. Through reading and studying, people can constantly expand their knowledge and horizons and explore and understand the world.