With the process of modernization, Buddhism in the 20th century also underwent significant innovation. It no longer secluded itself in the mountains, seeking rebirth in a pure land, but turned towards concerns about worldly life, known as "Engaged Buddhism," "Applied Buddhism," or "Worldly Buddhism." Vietnamese monk Thích Nhất Hạnh proposed "Engaged Buddhism" and "Applied Buddhism" as the terms to transform Buddhism. In addition to participating in social issues and establishing cultural enterprises, he also provided new interpretations of both Theravāda and Mahāyāna scriptures, laying the theoretical foundation for worldly Buddhism. This article examines, respectively, the Sutra's interpretations of the monk in two aspects: the Theravāda scripture "Discourse on Knowing the Better Way to Live Alone" and the Mahāyāna Huayan thought. It discusses how the monk, in interpreting the scriptures of Sutras, downplays the tendency towards renunciation and cessation in the original Buddhism, and how he adapts the Mahāyāna Huayan thought in different contexts. Through this, he puts forward a worldly Buddhism centered around mindfulness of the present moment.