风寒湿三气合而为痹。其三气时来，亦有偏多偏少。而风湿之气偏多者，名风湿痹也。
人腠理虚者，则由风湿气伤之，搏于血气，血气不行，则不宣，真邪相击，在于肌肉之间，
故其肌肤尽痛。然诸阳之经，宣行阳气，通于身体，风湿之气客在肌肤，初始为痹。若伤诸
阳之经，阳气行则迟缓，而机关弛纵，筋脉不收摄，故风湿痹而复身体手足不随也。
风寒湿三气合而为痹。风多者为风痹。风痹之状，肌肤尽痛。诸阳之经，尽起于手足，
而循行于身体。风寒之客肌肤，初始为痹，后伤阳经，随其虚处而停滞，与血气相搏，血气
行则迟缓，使机关驰纵，故风痹而复手足不随也。其汤熨针石，别有正方，补养宣导，今附
于后。
《养生方·导引法》云∶左右拱两臂，不息九通。治臂足痛，劳倦风痹不随。
风半身不随者，脾胃气弱，血气偏虚，为风邪所乘故也。脾胃为水谷之海，水谷之精化
为血气，润养身体。脾胃既弱，水谷之精润养不周，致血气偏虚，而为风邪所侵，故半身不
随也。
诊其寸口沉细，名曰阳内之阴。病苦悲伤不乐，恶闻人声，少气，时汗出，臂偏不举。
又寸口偏绝者，则偏不随；其两手尽绝者，不可治也。
偏风者，风邪偏客于身一边也。人体有偏虚者，风邪乘虚而伤之，故为偏风也。其状，
或不知痛痒，或缓纵，或痹痛是也。其汤熨针石，别有正方，补养宣导，今附于后。
《养生方·导引法》云∶一手长舒，令掌仰，一手捉颏，挽之向外，一时极势二七。左
右亦然。手不动，两向侧极势，急挽之，二七。去颈骨急强，头风脑旋，喉痹，膊内冷
注，偏风。
又云∶一足踏地，一手向后长舒努之，一手捉涌泉急挽，足努、手挽，一时极势。左右
易，俱二七。治上下偏风、阴气不和。
Wind, cold, and dampness are three pathogenic factors that combine to form Bi syndrome (obstruction syndrome). When these three factors invade the body, their proportions may vary, with one being more predominant than others. When wind and dampness are predominant, it is named Wind-Damp Bi Syndrome.
Individuals with deficient and loose interstices (pores) are susceptible to injury by wind-damp pathogens. These pathogens contend with blood and qi, causing stagnation and failure of free flow. The struggle between healthy qi and pathogenic factors occurs within the muscles, resulting in pain throughout the skin and flesh. The Yang meridians distribute yang qi and connect throughout the body. Initially, when wind-damp pathogens lodge in the skin and flesh, they cause Bi syndrome. If the Yang meridians are damaged, the movement of yang qi becomes sluggish, leading to flaccidity of joints and loss of control over sinews and vessels. Consequently, Wind-Damp Bi syndrome progresses to paralysis or inability to move the body and limbs.
Wind, cold, and dampness combine to form Bi syndrome. When wind is predominant, it is called Wind Bi. The manifestation of Wind Bi includes severe pain throughout the skin and flesh. All Yang meridians originate from the hands and feet and circulate through the body. When wind-cold pathogens lodge in the skin and flesh, they initially cause Bi syndrome. Subsequently, they damage the Yang meridians and stagnate at sites of deficiency, contending with blood and qi. This causes sluggish circulation of blood and qi, resulting in joint flaccidity. Thus, Wind Bi leads to inability to move the hands and feet. Regarding treatments such as herbal decoctions, hot compresses, acupuncture, and stone needles, there are specific formulas; methods for nourishing and guiding qi are attached below.
The *Preservation Formulas · Daoyin Methods* state: Extend both arms forward and hold them, practicing breath retention nine times. This treats pain in the arms and legs, and limb paralysis due to fatigue and Wind Bi.
Hemiplegia (paralysis of half the body) results from weak Spleen and Stomach qi, deficient blood and qi, and invasion by wind pathogens. The Spleen and Stomach are the sea of water and grain; the essence derived from food and drink transforms into blood and qi to nourish the body. Due to Spleen and Stomach weakness, the nourishment provided by the essence of food and drink is insufficient, leading to deficient blood and qi and susceptibility to wind invasion, resulting in hemiplegia.
Palpation of the Cun Kou pulse (radial artery at the wrist) revealing a deep and fine quality is termed "Yin within Yang." The patient suffers from sadness and depression, aversion to human voices, shortness of breath, spontaneous sweating, and inability to lift the arm on one side.
Furthermore, if the Cun Kou pulse is absent on one side, that side will be paralyzed; if the pulse is absent on both sides, the condition is incurable.
Pian Feng (hemiplegic wind) refers to wind pathogens lodging predominantly on one side of the body. When the body has areas of deficiency, wind pathogens invade these weak spots, hence the name Pian Feng. Symptoms include numbness (insensitivity to pain and touch), flaccidity, or Bi pain. Regarding treatments such as herbal decoctions, hot compresses, acupuncture, and stone needles, there are specific formulas; methods for nourishing and guiding qi are attached below.
The *Preservation Formulas · Daoyin Methods* state: Extend one hand long with the palm facing up, while the other hand grasps the chin and pulls outward to the limit of capacity. Repeat fourteen times (two sets of seven). Do the same on the opposite side. If the hand cannot move, stretch laterally to the limit and pull sharply, repeating fourteen times. This treats neck stiffness, headache with vertigo, bi-syndrome of the throat, cold sensation in the inner upper arm, and Pian Feng.
It also states: Stand with one foot on the ground, extend one hand backward forcefully, while the other hand grasps Yongquan (KI-1, Gushing Spring) and pulls sharply. Coordinate the force of the foot and the pull of the hand to the limit of capacity. Switch sides, performing fourteen times each. This treats upper and lower Pian Feng and disharmony of Yin qi.