Raymond Williams’s concept of the “structure of feeling” aims to describe the shared experiences, attitudes, and emotions of social groups at specific historical moments. However, this theory has been criticized for lacking a rigorous theoretical framework, clear definitions, and boundaries, as well as for failing to adequately explain its interaction with mainstream ideology. This paper attempts to address these issues through the lens of the Brazilian Liberation Theology movement. The “structure of feeling” established by Brazilian Liberation Theology departed from the traditional hierarchical system of the Church, aligning itself instead with emerging cultures and the practices of grassroots church communities. Under the repression of the military government, the mainstream Church began to accept certain aspects of Liberation Theology rather than viewing it solely as radical and threatening. Although Liberation Theology gradually waned after the fall of the military regime, its adjusted “structure of feeling”—devoid of its radical elements but still focused on social justice and poverty—profoundly impacted the global Catholic Church. The experience of the Brazilian Liberation Theology movement illustrates that a “structure of feeling” can transcend the dichotomy between consciousness and materiality and the crux lies in individuals discovering and asserting their own existence; such a “structure of feeling” can either emerge from within existing ideologies or challenge them directly; its relationship with mainstream ideology is significantly shaped by specific historical contexts; certain facets of emerging emotions are selectively incorporated into mainstream ideology, typically in ways that mitigate their more radical implications.