Imagine if you were able to consciously travel throughout the spiritual world, to visit its environments, to communicate with its inhabitants and to observe their behavior. More than two centuries ago, the scientist, Emanuel Swedenborg was granted this rare privilege. And the reason he was permitted to witness the glories of Heaven and explore the gloomy depths of hell was in order that he might share his scientific knowledge with humanity. In The Knowledge of Spiritual Realities, the author shows how Swedenborg's descriptions of the spiritual world are perfectly reasonable, rational and understandable. Spiritual substances and forms are neither abstract nor obscure; on the contrary, they are real and concrete. If we are to find real solutions to our personal and social problems, and enter a New Age of enlightenment, we need to acquire a more profound knowledge of spiritual realities. What is spirit? Where is the spiritual world? How is the spiritual world related to the material world? What are angels? How do they live? How are human beings related to the world of spirit? What is the purpose of our life on Earth? These are only some of the important questions answered in this book.