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b'Using the physical sciences of the material world as a reference, Andre Luiz offers an enlightening study of the intricate mechanics of mediumship. He offers mediums and students of the subject the resources needed for understanding complex questions pertaining to physics and physiology, which are intelligently related to the many aspects of mediumship. He emphasizes the importance of Jesus-centered mediumship, explaining that besides the knowledge required, discipline and responsibility appear as factors for improving individuals who devote themselves to communicating with the Greater World according to the principles of the Gospel and the Spiritist Doctrine.'