During a lecture in the early 1840s, James Braid, a Scottish surgeon and pioneering figure in the field of hypnosis, observed a demonstration of animal magnetism performed by Charles Lafontaine. Lafontaine, a well-known practitioner of this controversial practice, showcased how individuals could be put into a trance-like state, supposedly by channeling magnetic forces. Braid's initial skepticism soon transformed into fascination as he witnessed firsthand the effects of the procedure on participants, who exhibited unusual behaviors that suggested a deep alteration of consciousness. This pivotal experience ignited a spark in Braid that propelled him into a robust investigation of these phenomena.

Following this encounter, Braid conducted extensive research into what he would come to define as hypnotism, distinguishing it from the broader, more ambiguous concept of animal magnetism. He meticulously documented his findings and practices, introducing new techniques, such as the use of suggestion and the concept of fixed attention, which he believed were essential in inducing altered states of awareness. It was Braid's insight and methodical approach that laid the foundational work for the development of hypnosis as a legitimate field of study in both medical and psychological contexts.

Braid eventually published several works, including "Neurypnology," which elaborated on his theories and clinical practices related to hypnotism. His contributions were instrumental in changing the perception of hypnotism from mere spectacle or superstition to an acknowledged technique with therapeutic applications. Braid's deep engagement with the study of hypnotism not only advanced his own career but also established a platform for subsequent research and exploration into the depths of human consciousness and its untapped potential.