Yǒngquán — sole grounding point
Foot contact
Yǒngquán closes the circuit at the sole as a grounding contact point. A front-view midpoint stands for bilateral feet and is a visual teaching convention rather than a literal midline sole anatomy claim.
Point 10 of 11 in Do-In / Tao-Yin Self-Massage Circuit
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Modern Do-In teaching manuals (secondary)
Secondary practical sources used for contemporary Do-In terminology, self-massage sequencing, and accessible point selection.
Mawangdui Daoyin tu (導引圖), Tomb 3 silk manuscript (primary_canonical)
The Daoyin tu preserves illustrated movement and exercise figures in an early Han manuscript witness; it does not prescribe this modern eleven-point self-massage circuit.