This theme explores how mantras function as mediums across various forms—written, tattooed, carved, and digital. It examines how notions of efficacy and authenticity are maintained as mantras travel through different media, including the body, senses, and cognition. This approach, inspired by McLuhan's concept of media as extensions of human faculties and de Vries's insights into religious communication technologies, integrates the sonic, material, and efficacious dimensions of mantras. We view mantras in any form—whether as uttered sound, inscribed on fabric or stone—as mediators between practitioners, deities, and cosmological entities. The project pioneers a new research paradigm by emphasizing how mantras operate across diverse media and how these media influence their role and effectiveness.