Dr. Marcel Vogel made his first appearance on 21st Century Radio in early 1988. A former materials scientist, Vogel founded Psychic Research Inc. just years before, dedicating the rest of his life to the study of bioenergetics, including the use of crystals for energetic healing. Vogel answers questions on how crystal formations interact with human energy, the proper way to cleanse crystals, and how they can support meditation and prayer. Finally, he conducts an on-air experiment using these principles. You can find more information about Dr. Vogel's legacy (including an archive Psychic Research Inc Newsletters) at marcelvogel.org. To listen to the full interview, head to the Hieronimus & Co online archive.