Spleen-Stomach & Internal — the 1 books the tradition kept on this shelf
One short treatise that turned the question around: instead of what came in from outside, what happens when the body's own centre of digestion and support is worn down. It is the ancestor of every 'strengthen the middle' line of thinking.
Every entry below is taken from the same catalogue the product is built on: the title, the hand behind it, when it sits in time, what the book works on, and what it changed. Sentences in bold are the ones we can point an outside source at; the rest is our summary of the book, not a claim from it.
Treatise on the Spleen and Stomach (脾胃论)
金元·李杲（东垣） · Jin–Yuan (13th c.) · Pi Wei Lun
Works on: Three parts - upper, middle, lower - which our text cuts into 104 numbered blocks bracketed by two prefaces, one from a poet of the previous age, one from a student. The upper book builds the argument: how fullness and emptiness pass between spleen and stomach, an essay on ascending and descending, decline and excess, the lung's debt to digestion, plus rules for ranking drugs in a prescription and four classes of prohibition; it closes by quoting the Inner Canon and Zhongjing so the reader can see the source. The middle book turns on labour and irregular eating producing internal heat, naming the famous lifting formulas. The lower book pushes gastric weakness out to the nine orifices, the organs, the channels, and stops at regimen, restraint of desire, and sparing one's words.
What it changed: What survives is a place to intervene. Poor appetite with wasting, or size without strength in the limbs, or heaviness and drowsiness, or the senses going dull, are gathered under one head: stomach and spleen. A mechanism comes with it - irregular food and overwork drain the vital qi, and what fills the vacancy is fire; fire and vital qi cannot stand together. The prohibitions are filed into four checkable boxes: season, channel, disease, drug. And one section heading is simply an instruction to whoever is asking: when you treat, first find out what the patient finds agreeable. It built a whole school on the single claim that damaged spleen and stomach underlie a hundred illnesses; Japanese scholarship on it has never stopped, and Korean medicine drew from it too.
Where this leaves our product
Qicura reads a described symptom against this kind of material and returns a pattern in plain language with the sources named. It does not dispense: no herb quantities, no formula composition, no preparation instructions, and no needling technique - those are deliberate limits enforced on the server, not wording we soften for a page.
Educational, self-care content - not a medical diagnosis. For personal advice, consult a qualified practitioner.