James Braid quotes
...by the term Hypnotism, or Nervous Sleep, I mean a peculiar condition of the nervous system, into which it may be thrown by artificial contrivance, and which differs, in several respects, from common sleep or the waking condition. I do not allege that this condition is induced through the transmission of a magnetic or occult influence from my body into that of my patients; nor do I profess, by my processes, to produce the higher [i.e., supernatural] phenomena of the Mesmerists. My pretensions are of a much more humble character, and are all consistent with generally admitted principles in physiological and psychological science. Hypnotism might therefore not inaptly be designated, Rational Mesmerism, in contra-distinction to the Transcendental Mesmerism of the Mesmerists.[ Braid, Observations on Trance or Human Hibernation, 1850, 'Preface.
James Braid
...the real origin and essence of the hypnotic condition, is the induction of a habit of abstraction or mental concentration, in which, as in reverie or spontaneous abstraction, the powers of the mind are so much engrossed with a single idea or train of thought, as, for the nonce, to render the individual unconscious of, or indifferently conscious to, all other ideas, impressions, or trains of thought. The hypnotic sleep, therefore, is the very antithesis or opposite mental and physical condition to that which precedes and accompanies common sleep...
James Braid
...the position of the body significantly influences the emotions and sensations during the desired stage of hypnotism; also, whatever the passion which one wants to express by the attitude of the patient, when the muscles necessary to this expression are brought into play, the passion itself bursts forth suddenly and the whole organism responds accordingly. The upright body, the expanded chest, the contracted extensors, all that suggests the feeling of self-esteem, self-determination, resolve and unconquerable pride. As soon as one decreases the contraction of these muscles, that gives to the patient a depressed attitude, with a sunken chest, the expression of the features changes in a very manifest way, the voice and the whole manner of being of the individual now express humility, abasement and pity.
James Braid
There is, therefore, both positive and negative proof in favour of my mental and suggestive theory, and in opposition to the magnetic, occult, or electric theories of the Mesmerists and electro-biologists. My theory, moreover, has this additional recommendation, that it is level to our comprehension, and adequate to account for all which is demonstrably true, without offering any violence to reason and common sense, or being at variance with generally admitted physiological and psychological principles.
James Braid