In Purple Hibiscus (2003), Chimamanda Ngozi Adichie depicts the intersections of trauma, colonial legacy, and personal transformation within the postcolonial context of Nigeria. This article examines the novel through three interrelated perspectives. The first section examines the oppressive patriarchal structures embodied in the character of Eugene Achike, whose religious fanaticism and authoritarian control create an atmosphere of fear and psychological trauma, reflecting a broader critique of patriarchal power and political tyranny in contemporary Nigeria. The second section explores Christianity as a colonial legacy and instrument of repression, focusing on Western Catholicism internalized and practiced in Nigeria, which contributes to silence, guilt, and cultural erasure. The final section considers Kambili’s character development as a narrative of hope and resistance. Through her gradual awakening and the subtle acts of defiance by her brother and mother, the novel gestures toward the possibility of rebirth and the reclamation of agency. Drawing on the postcolonial theories of Homi Bhabha and Gayatri Spivak, this article investigates cultural hybridity, mimicry, and the recovery of voice and identity in Purple Hibiscus. The findings of this study indicate that the novel not only portrays the mechanisms of patriarchal and religious oppression in postcolonial society but also offers a complex process of both individual and collective resistance.