In this way, we influence the muscles of physiognomy [facial expression] and it is possible for us to arouse any passion or sentiment whatsoever; the… - James Braid

Some individuals may themselves be deceived by the compelling words of other individuals, but a much more significant number fall into the same state after being hypnotised by continuous eye-fixation upon an object and concentration of mind. This state can even be established before the eyelids are closed or a pronounced tendency to sleep has been felt. Suggestibility can also be increased by the sight of other patients in the experiment, and that by virtue of the laws of sympathy and imitation.

...have the power of directing or concentrating nervous energy, raising or depressing it in a remarkable degree, at will, locally or generally. That in this state, we have the power of exciting or depressing the force and frequency of the heart's action, and the state of circulation, or generally, in a surprising degree.

...a peculiar condition of the nervous system, induced by a fixed and abstracted attention of the mental and visual eye, on one object, not of an exciting nature.