常于欲寐未寐之际，霎然举手振跃者，世皆谓为血不养筋，而实非也，乃津不濡脉之候
也。
人身气脉一动，周身百脉涌应，其中必有津以濡之，故能自然无碍也。若有一脉竟塞不通
，则气亦竟不至其处，亦遂寂然不动矣。无如脉终不能不通，气终不能不至也。脉中津汁耗
燥，一有不濡之处，或略有痰丝以格之，则气之既动而窒，窒而复动，一控送之间，而百脉
为之撼跃矣。其动之所发无定处，或起四肢，或起胸中，随其气之所触而起也。此象偶然一
见，不足为病。若欲治之，惟甘凉生津而已。凡小儿寐中，多作此象，俗谓骨气撑长之兆，
实即痰格其气也。若大人逐日方寐，即见惊掣，是为痰盛，是津虚之燥痰也。生津为主，而
祛痰佐之，津盛则痰有所载，而滑利易出也。若血液亏虚，不能养筋者，当见肢节拘急不便
，或举身振振欲擗然。此风热所伤，与发汗太过之所致，所谓筋惕肉 也。是故心津虚燥之
人，往往神明散越，欲寐之际，心中无故惊惕，四肢微有螈 ，甚至累累不已，令人不能成
寐者，其势虽微，病根反深。若骤因风热与过汗者，宜甘酸以养之，经谓∶心苦缓，急食酸
以收之是也；若久病与无病而然者，更宜大剂甘寒酸温之药，生津补血以溉之，所谓津液相
成，神乃自生地；又有水饮冲心而发者，必辛散淡渗，兼滑润之剂，载痰上下分出以涤之，
此又所谓心中 大动，恐如人将捕之者，是心阳为水邪遏抑，而神不自安也。
在想要入睡但尚未完全睡着的时候，突然举手跳跃抖动，世人皆认为是血液不能滋养筋脉所致，但实际上并非如此，这是津液不能濡润脉道的征候。
人身之气脉一旦发动，周身百脉都会随之涌应，其中必须有津液来濡润它，所以才能自然通畅无碍。如果有一处脉道竟然堵塞不通，那么气也就无法到达那里，于是就会寂静不动。无奈的是，脉终究不能一直堵塞，气也终究不能不到达那里。脉中的津液耗损干燥，一旦有不能濡润的地方，或者略有痰丝阻隔，那么气在已经发动后受阻，受阻后又再次发动，在一收一放之间，全身百脉就会为之撼动跳跃。这种跳动的发生没有固定位置，有时起于四肢，有时起于胸中，随着气所触碰的地方而发起。这种景象偶然出现一次，不足以成为疾病。如果要治疗它，只有用甘凉生津的方法罢了。凡是小儿在睡眠中，多呈现这种景象，俗称为骨骼生长撑长的征兆，实际上就是痰阻遏了气机。如果是大人每天刚要入睡，就出现惊厥抽搐，这是痰盛的表现，属于津液亏虚导致的燥痰。以生津为主，兼以祛痰为辅，津液充足则痰有所承载，从而滑利容易排出。如果是血液亏虚，不能滋养筋脉的，应当见到肢体关节拘急不便，或者全身震颤想要伸展的样子。这是由于风热所伤，以及发汗太过所导致的，这就是所谓的“筋惕肉瞤”。因此，心之津液亏虚干燥的人，往往神志散乱，在想要入睡之际，心中无故惊恐警惕，四肢轻微抽搐，甚至连续不断，让人无法成眠，这种情况虽然势头微弱，但病根反而深重。如果是突然因风热与过汗导致的，适宜用甘酸的药物来滋养，经书说：“心苦缓，急食酸以收之”就是这个道理；如果是久病或者无病却出现这种情况的，更宜用大剂量的甘寒、酸温药物，生津补血以灌溉滋养，这就是所谓“津液相成，神乃自生”；又有因水饮冲犯心脏而发作的，必须用辛散淡渗，兼有滑润作用的药剂，载着痰上下分出以涤荡清除，这又是所谓“心中悸动不安，恐惧得好像有人将要抓捕自己”，这是心阳被水邪遏制压抑，导致神志不能安宁。
At the moment when one desires to sleep but has not yet fully fallen asleep, suddenly raising a hand and jumping or trembling is commonly attributed by the world to blood failing to nourish the sinews (Jin), but this is actually incorrect; it is a sign of fluids (Jin) failing to moisten the vessels (Mai).
When the Qi and vessels of the human body move, all the hundred vessels throughout the body surge in response. There must be fluids to moisten them within, so that they can function naturally without obstruction. If even one vessel becomes completely blocked and unpassable, then Qi will also fail to reach that location, becoming silent and motionless. However, vessels cannot remain blocked forever, nor can Qi fail to arrive. When the fluids in the vessels are consumed and dried up, if there is any place lacking moisture, or if slight phlegm threads obstruct it, then Qi, having moved and then become stifled, will move again after being stifled. In this cycle of contraction and release, the hundred vessels are shaken and jump. The occurrence of this movement has no fixed location; it may arise in the limbs or in the chest, arising wherever the Qi touches. This phenomenon, appearing occasionally, is not sufficient to constitute a disease. If treatment is desired, only sweet-cool methods to generate fluids should be used. Children often exhibit this phenomenon during sleep, which is colloquially considered an omen of bone growth, but is actually due to phlegm obstructing Qi. For adults who experience convulsions (Jing Che) immediately upon attempting to sleep each day, this indicates excessive phlegm, specifically dry phlegm resulting from fluid deficiency. The primary treatment should be generating fluids, with dispelling phlegm as an adjunct. When fluids are abundant, phlegm is carried along and becomes slippery, making it easy to expel. In cases of blood deficiency where blood fails to nourish the sinews, symptoms such as stiffness and inconvenience in the joints, or whole-body tremors with a desire to stretch (Pi Ran), should be observed. These are caused by injury from wind-heat or excessive sweating, referred to as "sinew twitching and muscle quivering" (Jin Ti Rou Yu). Therefore, individuals with deficient and dry heart fluids often have scattered spirit (Shen). At the moment of desiring sleep, they experience inexplicable fright and vigilance in the heart, with slight twitching (Yu Yi) in the limbs, which may continue incessantly, preventing sleep. Although the manifestation may be subtle, the root of the disease is deep. If caused suddenly by wind-heat and excessive sweating, sweet and sour substances should be used to nourish, as stated in the classics: "The Heart dislikes flaccidity; urgently eat sour to astringe it." For those with chronic illness or no apparent illness who present similarly, large doses of sweet-cold and sour-warm medicines are more appropriate to generate fluids and nourish blood, embodying the principle that "when fluids and essence complement each other, the Spirit arises naturally." Another cause is water-fluids rushing to attack the Heart, which requires pungent-dispersing and bland-leaching agents combined with slippery-moistening properties to carry phlegm up and down for differentiation and purification. This corresponds to the description of "great palpitation in the Heart, feeling fearful as if someone were about to capture one," indicating that Heart Yang is suppressed by water-pathogens, causing the Spirit to be unsettled.