This is a research on literature and conceptions of the Opammavagga of Majjhima Nikāya. The Opammavagga is one division from the root of fifty discourses (mūla paññā). It contains ten discourses which were uttered by the Buddha and his great disciples, namely The Simile of the Saw, The Simile of the Snake, The Ant-hill, The Relay Chariots, The Bait, The Noble Search, The Shorter Discourse on the Simile of the Elephant''s Footprint, The Greater Discourse on the Simile of the Elephant''s Footprint, The Greater Discourse on the Simile of the Heartwood and The Shorter Discourse on the Simile of the Heartwood. These discourses have been fulfilled with different kinds of similes. The study of Chinese Buddhist texts (āgama) and doing comparative study with Chinese Buddhist discourses also has identical purpose as the above Pāli discourses. This research paper has been divided into five chapters. First, a preface consists of research motive, explanation of the relevant documents and records. As well as there are discussions on the meaning of the ''Simile'' as well as explaining the origin of the nine and twelve elements of the Buddhist discourses (navānga buddhasāsna). In the second chapter, A table of comparative study on Pāli and Chinese discourses has also been included. There is also an analysis of the similes on the ten discourses of Opammavagga and the study of their hidden meanings in the third chapter. In the fourth chapter of this paper, discussion on the conceptions of Opammavagga of Majjhima Nikāya, includes three sub topics, first is the traditional sequence of the Buddhist practice and the path of liberation. Second, we look into the way of developing great compassion, endurance and wisdom. Third, is the way of holding the Right Concentration and great achievement of the Buddhist saints. The last chapter of the paper is the conclusion of the research. By studying the similes of the Buddhist discourses, we are able to grasp the way Buddha teaches his disciples. This research leads the common people to understand the discrimination between ''Buddhist discourse'' and ''Buddhism''. At the same time, it also indicates that one''s understanding on the meaning of the similes does not represent that he has been awaken by the teachings of the Buddha. This is because the real teachings are more than just the similes, stories and languages that appeared on the Buddhist texts. The conceptions of Opammavagga of Majjhima Nikāya leads the ordinary people to practice the path of liberation which was what had been followed by the Buddha and Buddhist saints as well as leading them to experience the state of a developed mind which was what the saints are exactly attaining. It is noticed that if someone apply the teachings of the ten discourses to their daily life style and practice them in order, they are able to obtain the great wisdom that had been fulfilled by the Buddha and saints. By the power of the great wisdom, it eliminates all impurities of the mind and can attain everlasting happiness.
