The Zen Buddhism, which was originally known as "the teachings are different, and no writing is established", later appeared a large number of words such as the "Platform Sutra", "Five Lanterns and Yuan", "Jingde Chuan Lantern Record", and the quotations and works of Zen masters.

, which originally claimed to be " is the teaching of , and does not establish words", later, there were a large number of words such as " Platform Sutra ", "Five Lanterns and Yuan", "Jingde Chuan Lantern Records", and the quotations and works of Zen masters.

A sect is like a person, and has a process of generation, development, and change. Many things cannot be controlled in advance.

Zen Buddhism founded by Huineng appears in an anti-traditional aspect. Although he did not explicitly oppose learning and meditation, he believed that practicing does not necessarily have to follow fixed procedures and patterns, but that practicing meditation can be carried out anytime and anywhere in daily life. Eating, sleeping, carrying water and chopping firewood are all practices, all of which are Zen .

After Huineng's death, Zen Buddhism has developed on a large scale and many tribes emerged. Zen masters from various tribes have made more use of "Zen". The form of "Zen" has become more flexible and diverse. A sentence, a gesture, or a movement can all be expressed as Zen. Famous ones include Niutou Zen , Zhaozhou Zen, Linji Zen, Caodong Zen, Watching Words Zen, Silent Zha Zen, Buddha Reciting Zen, Wild Fox Zen, Anpan Zen, Life Zen and many other Zen methods. This makes the originally relatively simple Zen method mysterious and makes it more difficult for practitioners to grasp.

Although all changes are inseparable from the root, the purpose of "Zen" is to cultivate the mind and nature and then obtain a spiritual state of liberation. But in its development process, the free and lively meditation method gradually became formal and patterned, losing the original spirit of Zen. Some practices of improper education have been solidified, losing the original intention of maneuvering and shouting, and losing the value of meditation. As a result, Zen Buddhism, which originally "not established words", has accumulated very considerable writings. This is actually a manifestation of Zen's own decline.

Zen originally had a large number of Buddhist scriptures as the basis for this sect, such as " Diamond Sutra ", "Lankavatara Sutra", " Shurangama Sutra ", " Perfect Enlightenment Sutra ", "Platform Sutra" and so on. Huineng is the intention of listening to people reciting the Diamond Sutra. Fifth dynasty and After the Northern Song Dynasty , public cases and clevernesses prevailed within Zen, creating a large number of quotations from ancestors. A "literary Zen" is formed that is different from "silent Zen". From "not establishing words" to "making words big".

quotes mainly record the French language of Zen masters of all dynasties, including the essence of teaching the Dharma, the verification of understanding, the convenience of teaching, the achievements of bachelors from various fields, as well as mutual questions and answers, questions, debates, and research. It is generally compiled by the disciples who follow Zen masters at any time. The "Platform Sutra of the Sixth Patriarch's Dharma Treasure" is the first quotation of Chinese Zen Buddhism. As Southern Zen became the orthodox of Chinese Zen, quotations have also become a special style of Zen, which has been manufactured in all generations.

In Tang Dynasty , the main quotes that appear include "Quotes of Master Fu", "Quotes of Master Mazu Daoyi", "Quotes of Master Baizhang Huaihai", "Quotes of Master Huangbo Duanji Wanling Lu ", etc. After the Five Dynasties, ", Five Families, Seven Sects, " was established one after another, and Zen quotations emerged like mushrooms after a rain. In addition to recording the personal quotations of a Zen master, there are also collections of quotations of several Zen masters. For example, the "Quotations of Zen Master Mingjue" written by Xuedou Chongxian (980-1052 AD) and the "Quotations of the Ancient Zunsu" collected by the Lord of the Cang, which contains the quotations of more than 40 Tang and Song Zen masters, including Nanyue Huairang, Mazu Daoyi, Baizhang Huaihai, , Linji Yixuan, Yunmen Wenyan , etc.

According to statistics, from the Tang Dynasty to the Qing Dynasty, there are more than 300 Zen quotations, including lost quotations, and the total text should be more than 100 million. There are a lot of cases in

Zen quotes, lamp record . "Public case" originally refers to a case where the government judges right and wrong, and was borrowed by Zen Buddhism. Zen Buddhism records the words and deeds of the predecessors as an example to indicate the practice of Zen to judge right and wrong. Over time, the case itself has become the object of observation and thinking.

The style of the sect of the Gong Case began in the Tang Dynasty and became popular in the Song Dynasty. The Zen sects in the Song Dynasty often used public cases to explain them in language and text and even made cumbersome textual research, which further promoted the proliferation of textual Zen.

Because Zen Buddhism believes that all sentient beings have Buddha nature, as long as they see the nature, they can suddenly realize and become Buddhas.They advocate the heart passing through the heart, emphasize transcending words and expressing thoughts, and oppose logical thinking analysis. Therefore, ordinary things and ordinary conversations in daily life are usually used to inspire wisdom, in order to see the original Buddha nature from small things. Therefore, public cases often show irlogical characteristics and are not easy to understand for people. Learners often seek enlightenment by studying the case, or use the ancestor's case to examine their own practice, while teachers can use the case to educate their disciples, or use the case to express their implications, or use the case to confirm the awareness of the disciples.

Some of the cases are used in one word or one sentence for study on ginseng, which is called "the koan". For example, Zen Master asked, "Dogs still have Buddha nature, but they don't have Buddha nature?" Answer: "No." This set of dialogues is a case, and the word "no" is the beginning of the conversation. When practicing Zen, you work hard on the verbal talk, which is called " verbal talk ". Weishan once asked his disciple Xiangyan: "I will not talk about any of you who have learned it. What is the true face of my parents before they were alive?" It is said that Xiangyan was so painful that he became enlightened. Later generations regarded Xiangyan as the beginning of the koan.

cases are composed not only of language, but also of actions. One day, Zen master Nanquan (748-834 AD) picked up a cat and said to his disciples: "If you get the Tao, you will not be killed." The disciples were speechless. Nanquan then waved his sword to cut the cat into two pieces. Later, the son Zhaozhou (778-897 AD) came back from outside. After hearing this, he took off his straw sandals and put them on his head. Nanquan sighed, "If you came back early, the cat would not die." The actions of Nanquan and Zhaozhou constituted a case.

Before Zen, the Buddhist teachings and meditation were both orthodox channels for practice. But after the emergence of Zen, this tradition was broken. However, "seeing nature" is not easily achieved by ordinary wisdom. As a sect of Buddhism, Zen Buddhism needs guidance to believers and conveys its simple and quick way of attaining enlightenment to its disciples. Therefore, it is still impossible to avoid borrowing language and characters between Zen masters and disciples to exchange their experience in learning. This is why Zen Buddhism aims to "not establish words" but later wrote a large number of quotations.