Abstract
This article discusses theoretical and practical aspects of transformative learning that can become a way for adults to critically evaluate and essentially comprehend themselves and their input in education, whose goal is to create action towards a sustainable society. The review of contemporary literature focuses on sustainability as a holistic concept linked to the idea of vision as significant in engendering alternative transformative power. The framework of a sustainable development has a potential to stimulate teachers' engagement with educational and societal processes with respect to the future development of a society within an ethical framework around values of democracy and active societal engagement. The aim of the research presented here is to explore the effect of critical transformative learning process for revitalizing adults' societal action brought about by engagement with in-service course for adults, aiming to gradually assist adults helping them to become creative producers of self and agents of transformations in education.