The concepts proposed by Paul Feyerabend have great relevance in interfaith dialogue, especially in the era of globalization. This idea is very much needed because the flow of developments in the era of religion makes religion increasingly plural and dynamic, so the potential for conflict will be more significant. Not infrequently, many worrying cases arise from differences in belief or faith. This article uses qualitative research methods with literature studies to explore the concepts of "Anything Goes" and "Proliferation Theory" by Paul Feyerabend and their implications in interfaith dialogue. Data were collected through a literature review that included books, journal articles, and other relevant academic sources. Data analysis was carried out descriptively with a content analysis approach, identifying the main themes, key concepts, and theoretical implications that support the diversity of perspectives in interfaith dialogue. This study found that both of Feyerabend's theories encourage recognizing and accepting the diversity of perspectives and interpretations in religious practice, acknowledging that no method or perspective holds absolute truth. By accepting the plurality of views, interfaith dialogue can achieve a deeper understanding of the complexity of human spirituality, enriching the exploration of universal values that underlie various religious traditions. In addition, the methodological flexibility offered by these concepts allows for the inclusion of multiple perspectives and creative approaches, creating space for non-traditional approaches that can overcome the limitations of conventional methodologies and stimulate innovation in engaging in interfaith dialogue.