From a broken spine to the practice
The biographical pivot Dispenza tells most often: a biking accident with a serious back injury, the medical recommendation for surgery to fuse vertebrae, and his decision to apply the cosmology he had been studying (consciousness creates form) to his own body for three months instead. He recovered without surgery. The recovery itself is not the teaching; what he made of it is — that the same practice anyone can run can engage the same intelligence that put a spine back together.
From that seed, his four books traced an arc: Evolve Your Brain on neuroplasticity; Breaking the Habit of Being Yourself on the self-image as a behavioural loop; You Are the Placebo on the documented healing power of belief; and Becoming Supernatural on the specific meditation technology — coherent body-mind-emotion states — that lets a body experience states beyond ordinary perception. The seven-day advanced retreats are where the practice is taught at depth; the research conducted there has produced an unusual archive (brain scans, HRV recordings) for a non-clinical context.