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This article traces the formation of silence as a tradition in early Chan Buddhism, focusing on its construction in the Lengqie Shizi Ji 楞伽師資記. Challenging later perceptions, it argues that silence was not an innate characteristic but a historically contingent product of doctrinal interaction with the Huayan school. The analysis focuses on Fazang’s 法藏 definition of the “sudden teaching” (Dunjiao 頓教), showing how Huayan scholastics legitimized silence as an expression of the “wordless suchness” (Liyan Zhenru 離言真如) in the Dasheng Qixin Lun 大乘起信論. This doctrinal classification thus provided the Chan author Jingjue 淨覺 with a doctrinal framework to elevate wordlessness into a marker of authentic transmission. The paper further considers the Huayan critique of silent pedagogy, which pointed out the paradox of using silence as a didactic method. By situating the Lengqie Shizi Ji within the dynamics of Chan–Huayan interaction, this study demonstrates that the Chan tradition of silence was not a mere meditative stance or a timeless essence, but a discursive construction that functioned simultaneously as pedagogy and as a marker of sectarian identity.

Commentarial literature constitutes a cornerstone in the edifice of Chinese Buddhism, providing critical exegesis of Indian Buddhist texts. This paper examines the pivotal role of Chengguan (738–839), the fourth patriarch of the Huayan school, revered for his extensive commentarial work on the Chinese translations of the Buddhāvataṃsaka-sūtra. Chengguan not only composed a written commentary but also engaged in discourses with the monastic and lay communities at Wutaishan, prompting the creation of a sub-commentary derived from these oral elucidations. The study posits that the composition of Chengguan’s audiences, comprising Confucian-educated scholars and Buddhist monks, necessitated a pedagogical strategy that integrated Chinese intellectual traditions into the Buddhist narrative to enhance comprehension. This analysis focuses on Chengguan’s citations of the Analects, showcasing how he interweaves Confucian maxims into the fabric of his commentary to illuminate Buddhist doctrines. The research articulates the method he employed to make the Buddhist texts resonate with a Chinese audience.

Among the texts of Huayan Buddhism, the study of the Treatise of the Golden Lion remains at the level of literal translation. Neither the core doctrines of the Treatise nor the original contexts of its delivery have received much scholarly attention. This paper first contextualizes the preaching background of the Treatise and its relevant doctrines, and then conducts a section-by-section explanation of the Treatise with special consideration given to the intention of Fazang and his manner of preaching. The doctrines of the ten mysterious gates and the six characteristics, along with the manifestation of the distinctive teaching of one vehicle, constitute the key components of the preaching. They are the representation and revelation of the doctrine of the infinite dependent arising of dharmadhātu.

Buddhism is a tradition that set itself decidedly against theism, with the development of complex arguments against the existence of God. I propose that the metaphysical conclusions reached by some schools in the Mahayana tradition present a vision of reality that, with some apparently small modification, would ground an argument for the existence of God. This argument involves explanation in terms of natures rather than causal agency. Yet I conclude not only that the Buddhist becomes a theist in embracing such explanations as legitimate, but also ipso facto abandons their metaphysical project and ceases to be a Buddhist.

The Zhao Lun, authored by Seng Zhao, elaborates on the Madhyamaka thought. This work has had a significant impact on Chinese Buddhist philosophy, as well as on Confucianism and Taoism. During the Yuan dynasty (1271–1368), the esteemed monk Wencai from the Huayan school of Buddhism composed a book titled A New Commentary on the Zhao Lun (hereafter New Commentary), which offers annotations and explanations for the text of the Zhao Lun and employs the “One Mind” theory to interpret the Zhao Lun. Text analysis methods are utilized in this article to conduct an in-depth study of the “One Mind” theoretical system constructed by Wencai within the New Commentary. It explores the essential content, integrative characteristics, and theoretical origins of the “One Mind” theory, thereby revealing the theoretical style of the Huayan school during the Yuan dynasty from a novel and unique perspective. Additionally, we analyze how Wencai integrates Tathāgatagarbha thought and Madhyamaka thought into his theory of “One Mind”. This analysis constitutes, to a certain extent, an indirect refutation of the harsh criticisms of Tathāgatagarbha thought of “Critical Buddhism” in Japan and provides new perspectives and reflections for a deeper understanding of Tathāgatagarbha thought.

The philosophy of the Huayan school is founded on the dharmadhātu (法界) as its fundamental ontology, embodying the boundless truth of the cosmos and human existence. It seamlessly integrates the philosophical doctrine of the “perfect interpenetration and non-obstruction of Buddhist teachings”, while expounding the vast tenets of “principle (理), phenomena (事), wisdom (智), and practice (行),” all of which are encompassed within the comprehensive framework of the “four stages of faith–understanding–practice–realization (信解行证)”. The idea of “four dharmadhātus” (四法界), which was first systematically formulated by Master Chengguan, is considered one of the core doctrines of Huayan thought. However, contemporary scholarship has yet to provide a thorough elucidation of the relationship between the one true dharmadhātu (一真法界) and the four dharmadhātus, nor has it sufficiently addressed the notion that the four dharmadhātus are not merely a theoretical construct but also a genuine realization—a stage in the practice of spiritual cultivation. This study first explicates the conceptual significance of the four dharmadhātus, then analyzes the Huayan patriarchs’ interpretations of the one true dharmadhātu and the four dharmadhātus. It further explores the path to awakening through the interpenetration and non-obstruction of the four dharmadhātus and highlights the integration between the empirical world and the ideal world of Buddhist teachings. Ultimately, it argues that every realm and every stage within the dharmadhātu is perfectly complete and seamlessly interconnected.

This paper examines the Nanatsu-dera manuscript of the Dafangguang Rulai Xingqi Weimizang Jing (RXWJ) through the lens of scribal practices, with a focus on variant characters (yitizi, 異體字) and textual transmission. As a “separately produced scripture” (bie sheng jing, 別生經), the RXWJ was not included in the woodblock-printed editions of the Chinese Buddhist canon, which limited its circulation and made manuscript copies—such as the Nanatsu-dera manuscript—critical for reconstructing its textual evolution, transmission, and scribal modifications. A detailed paleographic investigation reveals scribal variants, orthographic fluidity, and phonetic substitutions, illustrating both intentional adaptations and unintentional errors in textual transmission. Comparative analysis with Dunhuang fragments and the Taishō Canon further contextualizes these variations, shedding light on the interpretive challenges scribes and readers face. The findings suggest that the Nanatsu-dera manuscript underwent three stages of transmission: (1) it originated from the Fifty-Fascicle edition circulating in China, (2) it was used as a base text (diben, 底本) for manuscript copying in Japan, and (3) it was subsequently re-copied and preliminarily collated by Japanese scribes. By tracing scribal variants and textual transmission through a paleographic approach, this research underscores the critical role of manuscript culture in preserving texts outside the canonical tradition, offering new insights into the mechanisms of Buddhist textual transmission and adaptation in medieval East Asia.

Having adopted, appropriated, and altered Indian forms of Buddhism, various schools of Chinese Buddhist thought inherited and transformed essential orientations of both Buddhism and traditional Chinese philosophy insofar as it exhibits a tendency toward seeking universality in its understanding of the world. Within the works of prominent figures and schools such as Sengzhao and the Tiantai school, Huayan, the Consciousness-Only school, and Chan Buddhism, Chinese Buddhist thought integrates the diversity of phenomena through the notion of a unifying “mind-consciousness”. This approach creates the framework for understanding the relationship between humans and all things based on the comprehensive nature of consciousness. Given this foundation, Chinese Buddhist thought places a high value on the equality of all beings, advocates for dismantling distinctions between individuals and the world, and transcends the distinctions of reality to pursue universal unity. By dissolving the boundaries of existence and non-existence, the self and things, and the individual ego, this philosophical outlook lays a cognitive foundation for eradicating the “discriminating mind” in daily life and offers insights into overcoming separatism and isolationism. The Chinese Buddhist pursuit of universal consistency, which is simultaneously of this world yet transcendent, reflects Buddhism’s profound concern for humanity’s shared destiny.

Yang Shi initiated the Neo-Confucian methodology of self-cultivation centered on quiet-sitting, and focusing on Yang Shi may shift the study of Confucian quiet-sitting to a more chronologically appropriate “beginning-forward” approach. Incorporating techniques such as breathing and calming the mind, Yang’s approach to self-cultivation follows a model of returning to the state of centrality through quiet-sitting, and then preserving and expanding that state in moments of everyday life. This model is based on a moral psychology and metaphysics that views the comprehensive pattern-principle of the universe, Tianli, as fully manifest in the vital state of the human heartmind achievable through the practice of quiet-sitting. This view inherits major features of Cheng Hao’s philosophy while distinguishing itself from Cheng Yi’s. Yang Shi’s reflections on the differences between Confucian and Buddhist contemplative practices also indicate, despite his view being closer to the Huayan Buddhist metaphysical perspective of perfect fusion between pattern-principle and things compared to Cheng Yi, an insistence on characterizing his quiet-sitting philosophy as distinctively Confucian.

Contemplative technologies in the form of Buddhist practices that challenge the sense of self and thereby enhance the experience of interrelationality are viable strategies for addressing existential concerns such as the environmental crisis. Much of the existing research on Buddhism and ecology neglects to measure environmentally sustainable behavior or engage with empirical research. Likewise, experiments measuring the effects of contemplative practice on oxytocin, a neuropeptide hormone often implicated in interrelational contexts, are scarce. This study explores the existential relevance of Chan and Huayan practices for oxytocin and environmentally sustainable behavior. Using empirical methods, it reports on an experimental fieldwork study among international participants in a one-month retreat at a Buddhist monastery in Taiwan. Salivary oxytocin, recycling, and food waste were measured, while phenomenological reports of experiences during contemplative practice were also obtained. Results of enzyme-linked immunosorbent assay indicate a marginal increase in oxytocin following Chan practice of the huatou “Who recites the Buddha’s name?” which targets the sense of self, consistent with phenomenological reports reflecting an interrelational, ecological sense of self through huatou. Results also indicate increased recycling and decreased food waste by mass as a function of time on retreat. While the precise mechanisms explaining why participants exhibited more environmentally sustainable behaviors are currently unclear, the discussion proposes an empirically testable framework for bridging ecologies that links emotion, sense of self, and behavior. Contemplative practices may contribute to changes in oxytocin and environmentally sustainable behavior through activation of existential, aesthetic emotions such as doubt and awe, thereby inducing changes in the practitioner’s sense of self, which they may then experience as interrelated with broader ecologies, a possibility awaiting further research. The huatou fieldwork and proposed follow-up study on the Huayan sanmei men thus shed light on the relevance of contemplative technologies from Chinese Buddhism for bridging ecologies in the existentially relational sense.