Argues that ancient yantra (robot) tales reveal how their Hindu, Buddhist, and Jain authors thought about the nature of humanity and our role in a cosmos filled with divine and natural forces. What does it mean to be human? I, Yantra examines ancient Indian narratives about robots and mechanically constructed beings to explore how their Hindu, Jain, and Buddhist authors approached this question. Making translations of many of these texts available in English for the first time, author Signe Cohen argues that they shed considerable light on South Asian religious notions of humanity, self, and agency. She also documents connections between ancient and modern responses to the ethical problems of what precisely constitutes a sentient being and what rights such a being should have. Situated at the intersection of humanities and bioethics, this cross-disciplinary study will be of interest to scholars of South Asian languages and literature as well as specialists in religion and technology.