Clarifying "Ti" and "Yong" First
Many people encounter Plum Blossom Numerology (Meihua Yishu) for the first time, receive a hexagram, and immediately feel lost — six lines sitting there with no obvious entry point. The core operational logic of Plum Blossom Numerology (Meihua Yishu) is not to analyze each line in sequence, but to first divide the entire hexagram into two parts — the Ti Gua (體卦, Subject Trigram) and the Yong Gua (用卦, Object Trigram) — and then examine the Five Elements (Wu Xing) relationship between them.
How the split works: after casting the original hexagram, there will be one changing line (the dong yao, or moving line). The three-line trigram (upper or lower) that contains the moving line is called the Yong Gua, and the other trigram is the Ti Gua. The Ti Gua represents the querent or the party asking the question; the Yong Gua represents the matter being asked about or the other party. In a partnership reading, the Ti Gua is your side, and the Yong Gua is the prospective partner's side.
This framework comes from Shao Yong's (邵雍) Meihua Yishu of the Song dynasty. The tradition holds that "Ti is the host, Yong is the guest," and the Five Elements (Wu Xing) generating-and-overcoming relationship between host and guest determines whether the matter benefits you.
Ti Yong Bi He (體用比和): Evenly Matched, Moving in the Same Direction
The phrase "Bi He" (比和) means the Ti Gua and Yong Gua share the same Five Elements (Wu Xing) category. For example, if the Ti Gua is Dui (兌, Metal) and the Yong Gua is Qian (乾, also Metal), both belong to Metal — this is Bi He.
In the classical interpretation, Bi He indicates stability, harmony, and an absence of harmful conflict. Applied to a partnership reading, it broadly means: the two parties are similar in nature, aligned in direction, and unlikely to clash head-on. This type of reading is generally judged as favorable to proceed, with less friction expected.
One point worth stating clearly: Bi He does not mean "it will definitely work out." It describes the relationship between the two parties as relatively smooth — it does not mean external conditions, timing, or the specific matter are also ideal. If the shi (世) and ying (應) yao are in conflict elsewhere, or if the hu gua (互卦, nuclear hexagram) or bian gua (變卦, derived hexagram) contain inauspicious signs, Bi He only tells you there is no major problem between the two of you — the matter itself may still face obstacles.
Some popular accounts romanticize Bi He as a "match made in heaven," which seems exaggerated. Two people who are alike in temperament and direction can also end up operating independently precisely because they are too similar, or they may suffer the same losses when hit by the same external risk. Bi He is a favorable baseline, not a guarantee.
One case also needs to be distinguished: the Ti Gua and Yong Gua may share the same element but differ in strength — one is prosperous (wang xiang, 旺相) and the other is weak (xiu qiu, 休囚). Although they are of the same type, their strength is unequal. When assessing, bring in the yue ling (月令, monthly branch at the time of casting) to see which is strong and which is weak rather than concluding from the element alone.
Ti Sheng Yong (體生用): You Put In the Work, the Other Side Benefits
"Ti Sheng Yong" means the Ti Gua's element generates the Yong Gua's element. For example, if the Ti Gua is Zhen (震, Wood) and the Yong Gua is Li (離, Fire), Wood generates Fire — this is Ti Sheng Yong.
The classical interpretation of Ti Sheng Yong is fairly consistent: it is considered unfavorable for the querent — you are depleting yourself while the other party gains. In a partnership reading, the traditional view leans toward: you contribute more and receive less in this collaboration, or your resources and energy flow toward the other party without a proportional return.
Here is my own reading of this: Ti Sheng Yong is not necessarily "getting taken advantage of." Sometimes it represents a necessary initial investment. If the question is "should I provide support to this company right now," Ti Sheng Yong tells you that you will be continuously outputting resources — that is the factual situation — but whether the venture is worthwhile still depends on what your specific purpose was in casting the hexagram.
In practice, Ti Sheng Yong in a partnership reading commonly points in these directions:
- In the short term, you need to take the initiative to invest before the collaboration can move forward.
- The other party relies on you more heavily; the initiative is in your hands.
- If the Ti Gua is in a prosperous phase (wang xiang), generating the Yong Gua is still manageable; if the Ti Gua is weak (xiu qiu), continuing to generate the Yong Gua puts you into a passive position.
The influence of the yue ling is critical here. When the Ti Gua is prosperous and generates the Yong Gua, the cost is limited and acceptable. When the Ti Gua is weak and still generates the Yong Gua, it is essentially forcing the matter — classically read as inadvisable to invest, or a signal to significantly scale back.
Comparing the Two Relationships in Practice
A concrete scenario: you are considering co-founding a studio with someone. The cast gives you Ti Gua as Kun (坤, Earth) and Yong Gua as Dui (兌, Metal) — Earth generates Metal, so this is Ti Sheng Yong.
Looking only at the generating-overcoming dynamic, this suggests you are likely the primary contributor of capital or effort, while the other party is more on the receiving end of your support. That does not mean the partnership is impossible, but you should be clear about the structure of your input and return when negotiating the terms — otherwise it is easy to end up shortchanged.
Flip the scenario: Ti Gua is Qian (乾, Metal) and Yong Gua is Kun (坤, Earth) — Metal overcomes Earth, which is Ti Ke Yong (體克用, Subject overcoming Object). That is a different interpretive logic altogether and falls outside the scope of this article.
If Ti Gua is Kan (坎, Water) and Yong Gua is also Kan (坎, Water) — same element, so Bi He. In a partnership reading, this says the two of you operate in similar ways and are likely to develop a natural rapport. But both being Kan, and Kan carrying associations with danger and flux, the specific direction still needs to be read through the bian gua.
In Plum Blossom Numerology (Meihua Yishu), drawing a conclusion from Ti Yong generating-overcoming alone is a common shortcut. The generating-overcoming relationship is only the first layer of judgment. It needs to be layered with yue ling prosperity and weakness, reference to the hu gua, and the trajectory of the bian gua. Ti Yong Bi He and Ti Sheng Yong give you a directional read, not a final answer.
Articles in this column are for cultural and educational purposes only and do not constitute life advice.