Casting Techniques

Plum Blossom Reading the Signal of a Moment

Last updated 5/21/2026

12 lessons

4 ways to form a hexagram

1 moment-image method

Plum Blossom Numerology, usually called Meihua Yishu (梅花易數), is an I Ching method for turning the signal of a moment into a hexagram.

It is not Wen Wang Gua with fewer steps. It is not a replacement for coins or yarrow stalks. Its special object is the moment-image: a number that appears, a sound that interrupts, the time a question forms, a direction, a count, a sudden event, or a pattern that asks to be read.

The method belongs to the image-and-number world of the I Ching. It uses trigrams, numbers, time, observation, changing lines, the body/function pair known as Ti/Yong, and Five Phase relationships to ask: what is this moment showing, and how is it moving?

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The Course Map

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The Learning Arc

This course moves through four phases:

Phase	Lessons	Student shift
Observer	1-2	Learn what counts as a signal and what should be left alone.
Grammar	3-5	Learn the number, time, trigram, Ti/Yong, and Five Phase language.
Capture	6-10	Practice event, number, horary, tactile, and intuitive inputs with clear rules.
Judgment	11-12	Turn the result into a reading and cite the tradition honestly.

The arc is deliberate: perception first, calculation second, interpretation third. Without perception, the math is arbitrary. Without calculation, the perception is too private. Without interpretation discipline, the result becomes vague.

Practice Ladder

By the end, the student should have built a small casebook:

Stage	Exercise
Observer’s log	Record three possible signals without casting.
Number drill	Calculate trigrams and lines from three number pairs.
Calendar drill	Convert one asking moment using a stated time method.
Ti/Yong web	Map one trigram pair through Five Phase direction.
Event case	Work one external-event reading and track the outcome.
Tactile case	Produce one rice, bead, or page-number reading.
Final case	Write a complete reading with source stance and follow-up reflection.

That is what makes the course practical: not one impressive reading, but a trail of reproducible cases.

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The Boundary

The overlap is real: all three use hexagrams. Plum Blossom also overlaps with calendar work, Five Phases, and sometimes branch labels. But shared vocabulary is not shared operation.

That distinction protects the course’s vibe. Plum Blossom should feel spontaneous, observational, and image-number driven. It should not import WWG’s Yong Shen, Six Relatives, or line-strength matrix, and it should not make Eight Palaces mandatory for a calculation that is actually using Early Heaven trigram numbers.

Use Plum Blossom when the signal itself matters. A question arrives with a knock at the door. A number repeats. A client asks while a phone rings. A direction, count, color, sound, animal, or sudden movement captures attention. The method is strongest when the input is not forced.

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A Small Example

A student asks whether a workshop proposal has life in it. At that moment, three messages arrive in a group chat, and the wall clock reads 14:27.

One clean Plum Blossom approach:

Input	Operation	Result
3 messages	3 divided by 8	Li, Fire, as the upper trigram
14 + 27 = 41	41 divided by 8	Qian, Heaven, as the lower trigram
3 + 41 = 44	44 divided by 6	Line 2 changes

The primary hexagram is Fire over Heaven, Hexagram 14, Great Possession. The second line moves. The changed hexagram is Fire over Fire, Hexagram 30, Clarity.

This does not prove the proposal will succeed. It gives the moment-image: something has resources, visibility, and the need to attach itself to a clear vehicle. The practical reading would ask whether the proposal is being held by a strong enough structure and whether its value is visible without exaggeration.

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Source Position

The course treats Plum Blossom as a received image-number method associated with Shao Yong’s intellectual world, not as a securely autographed Song-dynasty manual by Shao Yong himself.

That distinction matters. Shao Yong is well documented as a Song thinker whose Yijing work tied number, cyclic time, and cosmology together. But direct authorship of the received Meihua Yishu text is disputed. We keep the association, because the tradition itself keeps it. We do not overstate the authorship.

Source basis: Sun and Wen support the practical event-and-number method; Bol grounds Shao Yong's image-number thought academically; Fu summarizes the authorship problem around Meihua Yishu, including the absence of the title from early bibliographic records and internal signs of later compilation.

Start with the working definition, then learn the arithmetic. Begin with the overview.