Massage
One of the greatest Persian medics was Avicenna, also known as Ibn Sina, who lived from 980AD to 1037AD. His works included a comprehensive collection and systematisation of the fragmentary and unorganised Greco-Roman medical literature that had been translated Arabic by that time, augmented by notes from his own experiences. One of his books, "Al-Qānūn fī aṭ-Ṭibb" (The Canon of Medicine) has been called the most famous single book in the history of medicine in both East and West. Avicenna excelled in the logical assessment of conditions and comparison of symptoms and took special note of analgesics and their proper use as well as other methods of relieving pain, including massage.
The Book of Healing
In "The Book of Healing", Avicenna discussed the mind, its existence, the mind and body relationship, sensation, perception, etc. He wrote that at the most common level, the influence of the mind on the body can be seen in voluntary movements, in that the body obeys whenever the mind wishes to move the body. He further writes that the second level of influence of the mind on the body is from emotions and the will. As an example, he states that if a plank of wood is placed as a bridge over a chasm, a person could hardly creep over it without falling if that person only pictures himself/herself in a possible fall so vividly that the "natural power of limbs accord with it." He also writes that strong negative emotions can have a negative effect on the vegetative functions of an individual and may even lead to death in some cases. He also discusses hypnosis ("al Wahm al-Amil"), stating that one could create conditions in another person so that he/she accepts the reality of hypnosis. Avicenna was also the first to divide human perception into the five external senses (the classical senses of hearing, sight, smell, taste and touch known since antiquity) and the five internal senses which he discovered himself. The five internal senses he discovered were: the "sensus communis" (seat of all senses) which integrates sense data into percepts; the imaginative faculty which conserves the perceptual images; the sense of imagination which acts upon these images by combining and separating them, serving as the seat of the practical intellect; "Wahm" (instinct) which perceives qualities (such as good and bad, love and hate, etc.) and forms the basis of a person's character whether or not influenced by reason; and intentions ("ma'ni") which conserve all these notions in memory.