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Generally speaking, in cases of *jia* (masses with fixed location), *ji ju* (accumulations and aggregations), phlegm coagulation, water overflow, edema, epigastric fullness and obstruction, panting and shortness of breath, cough with reversed qi, blood stasis, food retention, wind-heat urticaria, pain in sinews and bones due to cold-dampness, qi pain in the heart and stomach, as well as sorrow, depression, great anger, prolonged thinking, prolonged sitting, insomnia at night, and conditions where excessive use of cooling and purgative medicines for illness has suppressed and trapped Stomach Qi causing blockage, or in women with amenorrhea and pregnancy, the pulse often exhibits interruptions. There are instances of one or two missed beats, or interruptions of twenty to thirty beats before resuming. This is what Zhang Zhongjing referred to as "Jue Pulse" (Pulse of Reversal). Furthermore, children's pulses are often irregular like a sparrow pecking; the variation in frequency and density is insufficient basis for determining prognosis. A detailed examination of differentiation reveals four aspects: First, observe the pulse when it is not interrupted, assessing whether it is forceful or feeble upon palpation, and whether its rising and falling possesses momentum. Strong force and momentum indicate the presence of Shen (Spirit/Vitality); weak force and momentum indicate the absence of Shen. Second, observe the moment of interruption. If the pause occurs after the pulse qi sinks and lies hidden, because the force cannot outwardly鼓动 (surge), this indicates obstruction by pathogenic factors, with Yang Qi unable to exhale. If the pause occurs after the pulse qi rises, but the force fails to return inward, dissipating immediately under the fingers like a broken string without a descending phase, this indicates that the root of Yuan Qi (Original Qi) has detached, Yin Qi cannot inhale, and residual qi wanders within the meridians, impending external collapse. Third, observe the specific beat that is missed. If, after the pulse qi sinks, it completely fails to rise, directly missing one beat, this indicates internal knotting of pathogenic qi. If it does not completely fail to rise but reaches the midpoint and cannot thrust upward, feeling erratic and swaying under the fingers, this indicates sinking and failure of Middle Qi, impending downward collapse; shortly thereafter, it may transform into the appearance of "Shrimp Swimming" or "Fish Floating" pulses. Fourth, observe the returning beat after the pause. At the moment just before rising, if there is an effortful struggle and difficulty in rising, it indicates obstruction by pathogenic qi. If the rising and falling are natural and smooth, lacking any sense of forced struggle, it indicates that the pause results from detached Yuan Qi roots, with residual qi hovering in the void of the San Jiao (Triple Burner), chest, and abdomen, indecisive in movement, impending upward collapse; shortly thereafter, it may transform into the appearance of "Sparrow Pecking" or "House Leaking" pulses. Additionally, observe the pulse shape. Whether tight and constricted or large and surging, if it is continuous, uniform, thick, forceful upon palpation, even in height, or slightly weak on arrival but strong on departure, it is auspicious. If it is slightly weak upon palpation, strong on arrival and weak on departure, or contains a thin thread within a broad pulse, remaining rigid and immobile under the fingers, or rushing upward like running or shooting; or if it breaks and beads up like pearls, or feels like a measuring line that cannot gather, this indicates the dissipation of Middle Qi, blocked by phlegm preventing convergence, known as "Untying the Cord" pulse. Therefore, an occasional pause of one or two beats leading to a verdict of certain death is due to failed Qi failing to continue; a long pause of twenty to thirty beats still deemed treatable is due to closed Qi lying hidden internally. Further observe the symptoms: In patients, if there is phlegm obstruction and Qi compression preventing free flow, with unconsciousness, delirium, restlessness, and terrifying mania, this is auspicious. If Qi rises excessively without descending, frequent dizziness, yet consciousness remains clear and quiet, this is ominous. In healthy individuals (or those without severe disease), if there is unclear sensation in the chest and diaphragm, distending pain in the ribs and abdomen, stifling Qi, mental apprehension, limb twitching during sleep, vivid dreams, and seeing evil objects entering dark holes, this is auspicious. If there is weakness in the four limbs, panting upon slight exertion, excessive Qi rising unable to be inhaled, a constant hunger-like sensation in the chest without desire to eat, and frequent clear urination and defecation, this is ominous.