The Taiyang-Type Person: Four In, One Out—and the Mirror Classic’s Final Lesson in Individualized Medicine

The final individual type in the Mirror Classic of Bian Que is the Taiyang-type person:

Four in, one out: this is the Taiyang-type person, whose pulse lü are Jiazhong and Ruibin. The Taiyang pulse oscillates nine fen and moves above the sinews; with exhalation long and inhalation repeated, the pulse moves six times and qi travels six cun. For infants, children, and people of urgent temperament, this is normal.

These lines can almost be read as the conclusion of the entire work: the same numerical value has no complete meaning once removed from individual context.

Why are six movements not necessarily disease?

At the end, the source lists several arrangements that all produce six movements in one breath: three inhalation and two exhalation phases, three exhalation and two inhalation phases, one exhalation with five movements plus one inhalation with one, two-and-four, four-and-two, three-and-three, and so on.

It then says:

All are six movements in one breath, with pulse movement in inhalation and exhalation both rapid. Infants and children are in abundant growth; people of urgent temperament move qi rapidly and this is normal. The reverse of what is proper is disease.

“Six movements” therefore cannot diagnose disease by itself. For infants, children, and people of urgent temperament, it can be normal under the corresponding conditions.

The complete Taiyang baseline

It simultaneously includes:

• a four-in-one-out directional structure;
• Jiazhong and Ruibin as the governing lü;
• nine-fen oscillation;
• long exhalation and repeated inhalation;
• six pulse movements in one breath while qi travels six cun.

Hand and Foot Taiyang are further separated by nine-fen non-leaping versus surging-leaping; the text also says Hand Taiyang receives the turbid of yang while Foot Taiyang receives the clear of yang.

The final sentence adds “time” to the normal model

The work ends:

When breath and pulse movement are rapid, they move according to their flourishing time, each flourishing in accordance with its tone and color. When tone-color and pulse prevail outside their proper time, all should be considered disease.

Normality therefore has at least three layers:

shared physiological scale + individual type + temporal-seasonal phase.

The Mirror Classic’s quantification is thus not a search for one fixed normal value identical for everyone. It constructs a coordinate system that can be calibrated.

The sixty articles close their loop here

The first article asked: can invisible qi be measured?

By the sixtieth, the answer has become more precise:

first use breath to define time, bone measure to define space, pulse movement to define events, tone to define state, lü to define scale, Shou and She to localize, and the Twenty-Seven Hou to observe; then use Qiheng and Kuidu to compare constant and change—but every comparison must finally return to what this person, at this time, should normally be like.

This may be the aspect of the Mirror Classic of Bian Que most worth reconsidering today: it pursues quantification without forcing life into one universal constant.

If the whole work is to be translated into a modern, testable research program, the next step should not be to declare that an ancient number equals some modern physiological quantity. It should instead build reproducible measurements layer by layer—respiratory phase, pulse timing, waveform amplitude, left-right position, individual bone measure, and temporal background—and then test whether the Mirror Classic’s state codes genuinely have stable predictive power.