Key point: Clears Heat at the Nutritive-Qi/Blood level in late-stage febrile disease (macular rash, convulsions) — and, unusually for one point, also invigorates Blood and eliminates stasis, treating both the Heat itself and its long-term Blood-stasis consequence.

Key point: The point of choice for arrhythmia and palpitations — as an Xi point, its acute pain-stopping nature combines with a special calming, rhythm-regulating action on the Heart.

Key point: The main point to resolve Phlegm obstructing the Mind's orifices — from acute delirium and coma (Blood-level febrile disease) to chronic manic depression and epilepsy with foaming at the mouth (a classic sign of Phlegm).

Key point: One of the most important points in all of acupuncture — moves Qi and Blood in the chest, calms the Mind, and harmonizes the Stomach all at once, giving it an extraordinarily broad range across Heart, Liver and Stomach patterns.

Key point: Historically was even used as the Heart's own Source point in the earliest texts (Spiritual Axis, ch. 1) — shares HE-7's Mind-calming function almost entirely, but The author's clinical distinction: P-7 for women, Excess and Warm-disease patterns; HE-7 for men and Deficiency patterns.

Key point: The most effective point on the Pericardium channel to clear Heart-Fire — as the Spring point, a particularly dynamic Heat-clearer, with a specific effect on tongue ulcers from Heart-Fire.

Key point: Used (with the other hand Well points) for acute Wind-stroke resuscitation — extinguishing interior Wind and restoring consciousness, the channel's emergency point.