真仙上圣，而有三品之论也。鼻引口吐，可以去浮寒，逐客热，冲结滞，行经络。
若定百息，通开万病。若定十息，气血自交，阴阳不构。若定万息，气住神藏，大乘之
功，不可言也，补气之道，此为上矣。
华阳真人曰∶伤寒之疾既觉，急居静室，盘膝正坐，闭目冥心，定息住气。以双手
叠之，兜其外肾，向前倒身跪礼。不过二三十度，汗出清凉，病气自散。昔人以梦泄遗
漏，或下元虚冷，乃于日落之后，静坐幽室，以手兜外肾，以手搓脐下八十一数，九遍为
度，但左右换手而已，遂丹田补暖，真气充盈。昔人以幽室静坐，绝念忘言，一向下心，火
闭目存，想如火轮炎炎，积日气海坚固，颜色异常，日久下尽诸秽，自耐寒暑矣。昔
人以饮食过度，胸臆注满，或寒
热凝滞，或痛结壅塞，当静坐，鼻引清气，闭口不开，其气多入少出，以攻所病之处，太
紧方放，其气自下，三五次自然消除矣。昔人以心上为阳，而阴不能到，以肾为阴，而阳
不能及，故丹田之上，气升而不降，丹田之下，血注而不升，致使脚膝沉重，阴凝而阳散。
真仙上圣，有三品（三种层次）的论述。通过鼻子吸入、嘴巴呼出的方法，可以去除浮泛的寒邪，驱逐客居的热邪，冲散郁结阻滞，疏通经络。
如果呼吸能定于一百息，就能通治各种疾病。如果呼吸能定于十息，气血自然交汇，阴阳不再分离。如果呼吸能定于万息，气息停驻，神气内藏，这是大乘（高深）的功效，无法用言语完全描述，补气的方法中，这算是最高级的了。
华阳真人说：伤寒病刚发作时，应立即居住在安静的房间，盘腿端正坐姿，闭上眼睛，使心神宁静，调节呼吸，使气息停驻。用双手交叠，托住外肾（睾丸），身体向前倾斜跪拜行礼。不过二三十次，出汗且感觉清凉，病气自然消散。
过去的人对于梦中遗精滑泄，或者下元虚冷的情况，往往在日落之后，在幽静的房间里静坐，用手托住外肾，用手搓揉脐下部位八十一次数，以九遍为限度，只是左右换手交替进行而已，这样丹田就会感到温暖，真气充盈。
过去的人通过在幽静房间静坐，断绝杂念，忘记言语，一心向下，闭目存想，想象如火轮般炽热炎炎，久而久之气海坚固，面色异常红润，日子久了排尽体内诸种秽浊之物，自然能够耐寒暑了。
过去的人对于饮食过度，导致胸膈充满，或者寒热凝滞，或者疼痛结聚壅塞的情况，应当静坐，鼻子吸入清气，闭口不张开，气息多入少出，用来攻治患病之处，等到气息感到太紧时才放松，气息自然下行，三五次后自然消除。
过去的人认为心位于上部属阳，而阴气不能到达；肾位于下部属阴，而阳气不能及至。因此丹田之上，气上升而不下降；丹田之下，血灌注而不上升，致使脚膝沉重，阴气凝滞而阳气散失。
The true immortals and supreme sages have discussed three categories (three levels). By inhaling through the nose and exhaling through the mouth, one can dispel floating cold pathogens, drive away guest heat pathogens, break up stagnation and obstruction, and circulate the meridians.
If respiration is stabilized at one hundred breaths, myriad diseases are unblocked. If respiration is stabilized at ten breaths, Qi and Blood naturally intersect, and Yin and Yang do not separate. If respiration is stabilized at ten thousand breaths, Qi remains stationary and Spirit is concealed; this is the merit of the Great Vehicle (Mahayana/high-level practice), which cannot be fully described in words. In terms of methods for tonifying Qi, this is the highest.
Zhenren Huayang said: When a Shanghan disease (Cold Damage) has just manifested, one should immediately reside in a quiet room, sit upright with legs crossed, close the eyes, calm the mind, regulate the breath, and let the Qi settle. Place both hands overlapping to support the external kidneys (testicles), and lean the body forward in a kneeling bow. After no more than twenty or thirty repetitions, cool sweat will appear, and the pathogenic Qi will naturally dissipate.
In the past, people suffering from nocturnal emission or seminal leakage due to deficiency-cold of the lower origin would, after sunset, sit quietly in a secluded room, support the external kidneys with their hands, and rub below the navel eighty-one times, completing nine rounds as a standard, merely alternating left and right hands. Thus, the Dantian becomes warm, and True Qi becomes abundant.
In the past, people practiced sitting quietly in secluded rooms, cutting off distracting thoughts, forgetting speech, and directing the mind downward. With eyes closed and visualization maintained, they imagined a fire wheel blazing intensely. Over many days, the Qihai (Sea of Qi) became firm, complexion became extraordinary, and over time, all impurities were expelled from below, allowing one to naturally withstand cold and heat.
In the past, for cases of excessive food intake leading to fullness in the chest and diaphragm, or where cold-heat stagnation, pain, nodulation, and blockage occurred, one should sit quietly, inhale clear Qi through the nose, keep the mouth closed, ensuring more Qi enters than exits, using this to attack the diseased area. Release only when the sensation is too tight; the Qi will naturally descend, and after three to five times, it will naturally eliminate itself.
In the past, it was believed that the Heart, located superiorly, belongs to Yang, yet Yin cannot reach it; the Kidney, located inferiorly, belongs to Yin, yet Yang cannot reach it. Consequently, above the Dantian, Qi ascends but does not descend; below the Dantian, Blood descends but does not ascend. This causes heaviness in the feet and knees, Yin condensation, and Yang dispersion.