Emmanuel Swedenborg, scientist and reporter of the esoteric realm, published vast material describing the nature of the universal reality, including the specific structure of our individual and collective consciousness', which is the source and substance of the objective physical world. This book is an introduction to the science of correspondence, the rational metaphysical system based on the principle of spiritual causation, that Swedenborg uses to explain the entire phenomenal experience, including the mundane, the paranormal, the psychological, and the quantum realities. Through scientific correspondences, Swedenborg also explains how to unlock the internal, spiritual level meaning in the Bible, which is not visible in the literal text. In common sense language, this book introduces Swedenborg's description of the structure of reality.