[8] His primary interests have included integrating nondual wisdom teachings of Yoga, Tantra, Advaita, Taoism, and Buddhism with Western psychology.
[9] Miller worked with Walter Reed Army Medical Center and the United States Department of Defense studying the efficacy of iRest Yoga Nidra.
[10][11] The iRest protocol was used with soldiers returning from Iraq and Afghanistan suffering from post-traumatic stress disorder (PTSD).
[12][13][11] Based on this work, the Surgeon General of the United States Army endorsed Yoga Nidra as a complementary alternative medicine (CAM) for chronic pain in 2010.
[14] Continuing studies are being conducted with the use of the iRest Yoga Nidra protocol as a treatment for PTSD and related symptoms.