A profound philosophical treatise exploring the nature of ?akti—the dynamic, creative power of the universe. In this work, Sir John Woodroffe (writing as Arthur Avalon) presents the Shakta worldview, where Power (?akti) is not separate from Consciousness (Cit) but is its active expression. Drawing from Vedic and Tantric sources, he examines reality, causality, mind, matter, and the role of M?y? as the force that manifests the unmanifest. This book is a cornerstone for understanding non-dual Shakta metaphysics.