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Channel: BL, foot greater yáng (tài yáng) bladder channel

Modern location: An acupoint located on the superior aspect of the head, in a depression 2.5 cùn within the anterior hairline and 1.5 cùn lateral to the midline.

Classical location: One cùn and five fēn behind Fifth Place (BL-5). From The Great Compendium of Acupuncture and Moxibustion (针灸大成 zhēn jiǔ dà chéng)

Local anatomy: The anastomotic network of the frontal artery and vein, the superficial temporal artery and vein and the occipital artery and vein. The anastomotic branch of the frontal nerve and the great occipital nerve.

Action: Clears heat and eliminates vexation; brightens the eyes and opens the orifices.

Modern indications: Headache; dizzy vision; nasal congestion; febrile disease.

Classical indications: Absence of sweating in febrile disease; retching and vomiting; heart vexation; loss of smell; nasal congestion with copious snivel; eye screens; wind dizziness; deviated mouth.

Needle stimulus: Needling: 0.3‒0.5 cùn backward transverse insertion. Moxa: pole 2‒5 min.

Point name meaning:

• 承 chéng: to undertake as one's responsibility;
to carry, to receie, hold
• 光 guāng`: light, to shine

The character 承 (chéng) can mean to take on responsibility for a task. The second character, 光 (guāng), means light and may be taken as a representation of the eyesight. Because BL-6 protects the eyesight and treats related disorders, this point can be said to bear responsibility for or to be a guardian of the eyesight. The translation of this name as Light Guard conveys this meaning.

This point name might also be rendered as Receiving the Light, as 承 chéng can also mean to receive (the light in this instance being sunlight, or perhaps the glow of the head’s yáng qì). Thus translated, the name reminds us of the point’s location on the top of the head. See acupoint names: origins, meanings, and translations.

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