Yongshen (favourable element) — The Chart's Saving Element

Yongshen is the element the chart most needs — like coal in snow, like rain in drought.

What Yongshen Means

"用神" — "用" means "useful", "神" means "core energy" — together: "the chart's most useful core element".

Yongshen has two functions:

1. The chart's saving element — what self most needs
2. The element most welcomed by dayun and yearly transits

Knowing the yongshen means knowing the chart's optimal energy field, and knowing which periods are favourable vs unfavourable.

Four-Layer Yongshen Derivation

Modern Ziping synthesis (from 滴天髓 / 穷通宝鉴 / 子平真诠):

Layer 1: Climate Yongshen — when climate is extreme (hot/cold/dry/damp), adjust climate first:

• 丙 fire DM born in 子 month (deep winter) → climate yongshen = 丁 (warmth) + 甲 (wood feeding fire)
• 壬 water DM born in 午 month (peak summer) → climate yongshen = 庚 + 辛 (metal feeding water to rescue)

Layer 2: Bridging Yongshen — when two forces fight, the third element mediates. Wood-fire war: earth bridges.

Layer 3: Support/Restrain Yongshen — based on strong/weak.

Layer 4: Illness/Cure Yongshen — if the chart has a clear "illness" (visible imbalance), take the "medicine".

Climate takes priority: "Climate yongshen unmet — wealth and fame still incomplete" (Qiong Tong Bao Jian).

Transparent vs Hidden Yongshen

Yongshen isn't just an element — also matters whether it's transparent:

• Transparent: yongshen appears in a heavenly stem → "visible", strongly active
• Hidden only: yongshen only in branch's hidden stems → "buried", weakly active

Transparent → chart is climate-satisfied, life flows. Hidden only → chart is climate-incomplete, awaits dayun to "fill" the yongshen.

Yongshen and Dayun

When dayun reaches yongshen territory → this decade is the chart's "golden period". For instance:

• Water yongshen + dayun 壬子 or 癸亥 (water lands) → smooth
• Water yongshen + dayun 戊午 or 己未 (earth controlling water) → obstructed

So dayun assessment begins with: "what's the dayun element vs what's the yongshen?"

Yongshen Is NOT "Fill What You Lack"

The most common misreading: "I lack metal in my five elements, so I should supplement metal." This treats lack = need. Wrong.

Reality:

• A chart can have all five elements present and still lack yongshen (due to imbalance elsewhere)
• A chart can lack an element that is NOT the yongshen (might be jishen, the unfavourable element)

So knowing yongshen requires a master's review — not from simple "are all five elements present?" arithmetic.

Next step

Read about favourable vs unfavourable — how other elements classify around yongshen.

On this four-layer ordering: This layered ordering is a modern synthesis by our platform; the three classical texts (Diantian Sui, Qiongtong Baojian, Ziping Zhenquan) each have their own emphasis and do not present the layers as a unified hierarchy. The synthesis is for reader clarity.