On the other hand, it’s only in the last few decades that we’ve come to realise that!
Hypnosis itself hasn’t changed for millennia, but our understanding of it and our ability to control it has changed quite profoundly.
Mesmer was also the first to develop a consistent method for hypnosis, which was passed on to and developed by his followers. Mesmer himself, for instance, liked to perform mass inductions by having his patients linked together by a rope, along which his “animal magnetism” could pass.
He was also fond of dressing up in a cloak and playing ethereal music on the glass harmonica whilst this was happening.
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