This article examines the transformation of Australian EAL/D (English as an additional language/dialect) classrooms, transitioning from a monolingual focus on Standard Australian English (SAE) to embracing plurilingual and intercultural approaches in English language and literacy teaching and learning. Employing hermeneutic phenomenological and narrative analyses, the study reflects on the lived experiences of 16 English teachers who learned English as an additional language and migrated to Australia. The research highlights the significance of fluid affective processes, cultural responsiveness, plurilingualism, and intercultural identity development in language and literacy classrooms. Findings emphasise the central role of affect in EAL teaching and its implications for cultural responsiveness and linguistic diversity. The lived experiences of these teachers underscore the transformative potential of diverse teaching strategies that resonate with students on affective and cultural levels. Implications include fostering plurilingual literacy and identity development, promoting global identity, and cultivating intercultural capabilities among learners and educators. Ultimately, the article highlights the paradigm-shifting power of English language and literacy education when enriched with empathy, creativity, and a commitment to linguistic and cultural diversity. This approach not only enhances EAL/D education but also offers valuable insights and implications for other areas of the curriculum and pedagogical practices, promoting a more inclusive and responsive educational environment across disciplines.