逐脉审察者,一成之矩也。随人变通者,圆机之用也。比如浮沉迟数,以定表里寒热,此影之
随形,复何论哉!然而形体各有不同,则脉之来去因之亦异,又不可执一说以概病情也。何
则?肥盛之人,气居于表,六脉常带浮洪;瘦小之人,气敛于中,六脉常带沉数。性急之人,五至
方为平脉;性缓之人,四至便作热医。身长之人,下指宜疏;身短之人,下指宜密。北方之人,每
见实强;南方之人,恒多软弱。少壮之脉多大;老年之脉多虚。醉后之脉常数;饮后之脉常洪。
室女尼姑多濡弱。婴儿之脉常七至。故经曰∶“形气相得者生,三五不调者死。”其可不察于
此乎!而更有说焉∶肥盛之人,虽曰气居于表,浮洪者是其常也。然使肌肉过于坚浓,则其脉
之来也,势将不能直达于皮肤之上,反欲重按乃见,若徒守浮洪易见之说,以轻手取之,则
模糊细小,本脉竟不能测;瘦小之人,虽曰气敛于中,沉数者是其常也,然使肌肉过于浅薄,
则其脉之来也,势将即呈于皮肤之间,反可浮取而知。性急之人,脉数是其常也,适当从容
无事,亦近舒徐,性缓之人,脉迟是其常也,偶值倥偬多冗,亦随急数。北人脉强,是其常也,或
累世膏粱,或母系南产,亦未必无软弱之形;南人脉弱,是其常也,或先天禀足,或习耐劳苦,
亦间有实强之状。少壮脉大,是其常也,夭促者多见虚细;老年脉虚,是其常也,期颐者更为
沉实。室女尼姑,濡弱者是其常也,或境遇优游,襟怀恬 ,脉来亦定冲和。婴儿气禀纯阳,急
数者是其常也,或质弱带寒,脉来亦多迟慢。以此类推,则人身固有一定之形气,形气之中,
又必随地为之转移,方能尽言外之妙也。
Meticulous examination of each pulse represents a fixed standard. Adapting flexibly according to the individual embodies the application of a versatile and dynamic diagnostic approach. For instance, determining exterior or interior, cold or heat patterns based on floating (Fu), sinking (Chen), slow (Chi), and rapid (Shu) pulses is as natural as a shadow following its form; what is there to debate? However, since human bodies vary in shape and constitution, the arrival and departure of pulses also differ accordingly. One cannot rigidly adhere to a single theory to generalize all clinical conditions. Why is this? In individuals who are obese and robust, Qi resides at the surface, so the six positions of the pulse often present with floating (superficial) and surging (Hong) characteristics. In individuals who are thin and small, Qi is gathered within, so the six positions of the pulse often present with sinking (deep) and rapid (Shu) characteristics. For those with an impatient temperament, five beats per breath cycle constitute a normal pulse; for those with a leisurely temperament, four beats per breath cycle may indicate a heat pattern. For tall individuals, finger placement during palpation should be spaced widely; for short individuals, finger placement should be close together. People from northern regions often exhibit strong and solid pulses; people from southern regions often exhibit weak and soft pulses. The pulses of young and vigorous adults tend to be large; the pulses of the elderly tend to be deficient. Pulses after drunkenness are often rapid; pulses after drinking alcohol are often surging. Unmarried women and nuns often have soggy (Ru) and weak pulses. Infants' pulses often beat seven times per breath cycle. Thus, the classics state: "When form and Qi are harmonious, life prevails; when they are discordant by three, five, or other irregular intervals, death ensues." How can one fail to examine this carefully!
Furthermore, there is another aspect to consider: Although it is said that in obese individuals Qi resides at the surface and floating/surging pulses are their norm, if the muscles are excessively firm and dense, the pulse energy may not reach the skin surface directly but rather requires deep pressure to be felt. If one strictly adheres to the notion that floating/surging pulses are easily seen and uses only light touch, the subtle and fine original pulse characteristics will remain undetectable. Conversely, although it is said that in thin individuals Qi is gathered internally and sinking/rapid pulses are their norm, if the muscles are excessively shallow and thin, the pulse energy will manifest immediately between the skin layers, allowing knowledge of the pulse through superficial palpation (floating extraction). For impatient individuals, a rapid pulse is normal, yet in moments of calm and leisure, the pulse may appear relaxed and slow; for leisurely individuals, a slow pulse is normal, yet in moments of busyness and complexity, the pulse may become rapid and hurried. A strong pulse in northerners is normal, but those whose ancestors consumed rich foods for generations, or whose mothers were born in the south, may not necessarily lack a weak pulse presentation; a weak pulse in southerners is normal, but those with sufficient congenital endowment or accustomed to hard labor may occasionally exhibit strong and solid pulse characteristics. A large pulse in the young and vigorous is normal, but those with premature deaths often show deficient and fine pulses; a deficient pulse in the elderly is normal, but centenarians often exhibit deep and solid pulses. Soggy and weak pulses in unmarried women and nuns are normal, but those with leisurely circumstances and tranquil minds may present with a balanced and harmonious pulse. Infants possess pure Yang Qi, making rapid pulses normal; however, those with weak constitutions and cold tendencies may present with slow and delayed pulses. By extrapolating from these examples, while every person has a certain inherent form and Qi, within this form and Qi, one must account for shifts due to geographical environment to fully grasp the subtleties beyond the literal text.