Spiritual Tattoo by John A. Rush traces humanity’s engagement with bodily alteration from its prehistoric roots through the modern era. Drawing on evidence as early as 1.5 million years ago, Rush demonstrates that tattoos, piercings, scarification, branding, and implants have served as powerful rites of passage, markers of identity, and tools of social cohesion. He explores how deliberate infliction of pain—whether through punctures, incisions, or heated implements—functions ritualistically to purge guilt, affirm group membership, or invoke spiritual transformation. Rush also examines accidental wounds and their capacity to acquire symbolic weight within a community. By surveying diverse cultures—from ancient cave painters and Polynesian tribes to contemporary body-art enthusiasts—he reveals a remarkable continuity in how societies sacralize the body as a canvas of collective memory and psychological meaning. Ultimately, Spiritual Tattoo argues that physical modification remains one of the most enduring and universal expressions of the sacred.