Informed by ‘critical religion’ perspective in Religious Studies and postcolonial self-reflection in Sociology, this book interrogates the ideas of ‘religion’ and ‘the secular’ in social theory and Sociology. It argues that as long as social theory and sociological discourse embed the religion-secular distinction and locate themselves on the ‘secular’ side of the binary, Sociology will continue to serve the very ideologies it tries to subvert – namely Western modernity/coloniality.