Traditional Myeongli uses temporal layers of different lengths

Traditional Myeongli does not discuss only the natal structure. It also describes later Un (運) as temporal flow.[1]

Within that framework, Daeun (大運), or Luck Pillars, is a longer temporal layer, while a shorter annual influence layer is also discussed.[1]

This article introduces only the existence and basic relationship of these layers.

Daeun is commonly framed as a ten-year flow

Daeun is commonly described as a longer flow changing in ten-year units.[2]

Here, “ten years” is a traditional temporal framing used in Myeongli.

It is not itself a scientifically validated causal effect, nor does it mean that a particular event must occur during that ten-year period.

Annual influence may appear as seun or yeonun terminology

Terminology for annual influence differs across Sources.

A public academic abstract uses seun (歲運).[1] Korean-language Myeongli materials also use the term yeonun / 年運.

For that reason, this article may introduce the layer as annual influence / seun·yeonun, but it does not claim that the two terms are perfectly identical across every school and historical period.

These layers are read in relation to the natal structure

A beginner-level structure can be understood as:

natal structure → longer layer: Daeun → annual layer: annual influence

This does not mean that the cycles automatically determine a person's life. It means that traditional interpretation distinguishes temporal contexts of different lengths.

The structure does not guarantee whether or when a specific event will occur.

Calculation rules and event timing are outside this article

This article does not cover Luck-Pillar start age, forward/reverse sequencing, Month-Pillar calculation rules, five-year splitting, Branch-first weighting, Yongshin-based scoring, combination/clash timing, or annual/monthly/daily algorithms.

Those rules require separate school attribution, Source review, and calculation contracts.

For now, two ideas are enough:

Daeun is a longer temporal layer, and annual influence is a shorter temporal layer.

These layers provide interpretive context; they are not a prediction table guaranteeing specific events.