This anthology investigates the core tenets and historical development of Western mystical traditions through a curated selection of primary texts. The author, Patrick Grant, provides a scholarly framework that contextualizes these writings within their respective theological and philosophical eras. By examining the intersection of personal spiritual experience and institutional doctrine, the work explores how mystics have historically articulated the ineffable nature of the divine.

The subject matter points to a dense, academic exploration intended for students of theology and religious history. The framing suggests a rigorous, scholarly approach that prioritizes historical accuracy and textual analysis over popular spiritual interpretation.