This doctoral work examines the thesis that mutuality is an effective form of resistive and transformative postcolonial praxis. This thesis is explored through the interpretation of six texts from the Gospel of Mark, read in dialogue with groups of people who have variously experienced poor mental health. When juxtaposed next to biblical scholarship, these reading group interpretations offer emphases and expansions on the roles of identity, agency, and dialogue within the relational dynamics of the Markan characters. Mutuality was found to operate in these texts as a praxis that works within hegemonic power dynamics, that enables other praxes of resistance, and that is transformational of relational dynamics in supplemental ways. Within the milieu of postcolonial criticism, whilst it is not concluded that mutuality leads to the end of hegemonic power, this work finds it to be a biblically informed heuristic for the re-imagining of that power with regards to mental health in 21st century societal contexts.