This article explores the perspective and practices of the Forty-Two Syllable-Doors based on the Prajñāpāramitā-sūtras and Avataṃsaka-sūtra. According to the Forty-Two Syllable-Doors of Avataṃsaka-sūtra, śilpābhijñaḥ expressly sang the Forty-Two Syllables entering into the prajñāpāramitā door. Therefore, the Prajñāpāramitā-sūtras and Avataṃsaka-sūtra are the main basis for the study of the perspective and practices of the Forty-Two Syllable-Doors.In addition, the key points of the study are on the meaning of practicing the Forty-Two Syllable-Doors by singing, and unraveling the relationship between the rime table of the Huayan syllables and the Forty-Two Syllable-Doors. Finally, concludes the clues of the perspective and practices of the Forty-Two Syllable-Doors used to purify the human world. The discourse is made up of the following six chapters. The first chapter ,Introduction, introduces the research theme, and explains the concept and outline of the research topics one by one.The second chapter, the Forty-Two Syllable-Doors, is to guide the practice of the Mahayana Bodhi by entering into the prajñāpāramitā and the primary task is to unravel the reality of the conditioned co-arising, emptiness, and equality of the Dharma. The syllables are served as the sampayuttpaccayo of life reality to enlighten the wisdom of equality and through this important base to develop the skillful wisdom; then transform the Dharma as the adhipatipaticca of the Bodhisattva practice to carry out an infinite life journey. The third chapter, expounds the Forty-Two Syllable-Doors applying the enlightenment of the Dharmadhātu of Non-Duality as the yardstick for equality. This article uses the faith, understanding, action and realization to interpret the practice and enlightenment of the Dharmadhātu of Non-Duality, that is to reach an equal situation, becoming an instinct for self saving and saving others. Such foundation constructed on arguments follows and also keeps pace with the guidance of the prajñāpāramitā; and the whole set of practice arguments is the principle of the equality of the dharmadhātu of Non-duality. The fourth chapter, the singing observation guide of "Singing Avataṃsaka-sūtra Ritual Track" unravels the "Rime Table of the Huayan Syllables " of the " Singing Avataṃsaka-sūtra Ritual Track" and the structure of its singing design is just in line with the relationship network of "Prajñāpāramitā-sūtras" that one syllable initiates many other syllables and thus the meanings contained in the "Rime Table of the Huayan Syllables " chanting by Han-Buddhism are grasped. The fifth chapter, in the way of the operation and transformation of the mechanism of the Dharma conditioned co-arising clarifies the clues that the mechanisms of the operation of the Dharma applicable to purify the human world. However, the unit in which the Dharma operates is called Dharma. The Forty-Two Syllable-Doors is to live in the Dharma of emptiness and purity and also uses this as the core of the operation of the Dharma. Then, practice in the Dharma through the guidance of prajñāpāramitā and insight and awaken skillfully in each Dharma. Also, implements the realization of the principle of the equality th
