From the twentieth century to the present, the scientific medical establishment is taking consideration of alternative healing practices. Having witnessed positive results, medical researchers are facing urgent inquiries. What is the nature of these phenomena? Are these practices a violation of the laws of nature? Do miracles defy the laws of nature? According to author Reginald O. Crosley, M.D., the exotic scientific principles revealed in quantum mechanics, relativity theories, strings theory, and chaos theory, directly correspond to alternative medicines and miraculous healings. Crosley, in a "grand unified theory," holds that modern physics underlines the phenomena observed in unconventional modalities.