BaZi glossary · Na Yin
What is Fire Below the Mountain (山下火)?
The Na Yin of 丙申 and 丁酉
Short answer
Fire Below the Mountain (Shan Xia Huo, 山下火) is one of the thirty Na Yin of the sixty-pillar cycle. Its image is firelight at the foot of a mountain; it belongs to the 丙申 (Bing Shen) and 丁酉 (Ding You) pillars, and its Na Yin element is Fire. People with either as their year pillar are often said to have a Fire Below the Mountain life.
At a glance
- Group
- Na Yin · Fire
- Pillars
- 丙申 Bing Shen, 丁酉 Ding You
- Image
- firelight at the foot of a mountain
- Na Yin element
- Fire
- Other Fire Na Yin
- Fire in the Furnace, Mountaintop Fire, Thunderbolt Fire, Lamp Fire, Fire in the Sky
How to find the Fire Below the Mountain
The Na Yin pair up the sixty stem-branch pillars into thirty names; 丙申 and 丁酉 share Fire Below the Mountain. The Na Yin of the year pillar is often called one's life Na Yin, so people with a 丙申 or 丁酉 year pillar are said to have a Fire Below the Mountain life. BaZi years change at Lichun (around 4 February), so anyone born in January or early February uses the previous year's pillar.
| Pillar | Years (1900–2099) |
|---|---|
| 丙申 | 1956, 2016, 2076 |
| 丁酉 | 1957, 2017, 2077 |
The image and meaning of Fire Below the Mountain
Fire Below the Mountain burns at the mountain's foot, like evening hearths and lamps: warm but not showy. Traditionally it describes thoughtful, caring, warm-hearted people who quietly light up those around them.
Its light doesn't reach far, but it lights the way home, so this Na Yin is often read as valuing family and personal bonds, at its best among familiar people.
How to read it in a chart
- Year pillar
- the year pillar's Na Yin is the “life” Na Yin, traditionally used for a person's general temperament and, in compatibility matching, for comparing two people's Na Yin.
- Day pillar
- the day pillar's Na Yin is seen as closer to the self; some schools use it to add detail on temperament.
- Other pillars
- the Na Yin of the month and hour pillars, luck pillars and years are usually read only as background, not as good or bad on their own.
Fire Below the Mountain and the regular Five Phases
- Na Yin element
- Fire Below the Mountain's Na Yin element is Fire, taken from the 丙申–丁酉 pair as a whole.
- 丙申 (Bing Shen)
- the stem 丙 is Fire, the branch 申 is Metal.
- 丁酉 (Ding You)
- the stem 丁 is Fire, the branch 酉 is Metal.
Common misconceptions
- Na Yin cannot decide good or bad fortune on its own. BaZi analysis rests on the regular Five Phases and the Ten Gods; Na Yin is a supporting symbol.
- A Fire Below the Mountain life refers to the year pillar's Na Yin only; it does not make the whole chart Fire.
- Clashing Na Yin in compatibility matching does not mean a poor match; modern readings weigh how the two whole charts fit together.
Frequently asked questions
Do I have a Fire Below the Mountain life?
Look at your year pillar: if it is 丙申 or 丁酉, yes. You can use the years in the table, but if your birthday is before Lichun (around 4 February), use the previous year. The surest way is to check the year pillar's Na Yin in the free calculator.
Is Fire Below the Mountain's element just Fire?
Its Na Yin element is Fire, which is not the same as the regular Five Phases used in BaZi. Judging the Day Master's strength and useful god uses the regular elements of the stems and branches, not the Na Yin.
How important is Na Yin in BaZi?
Na Yin is an older supporting system, used for the “life” element of the year and in traditional compatibility matching. Modern BaZi analysis rests on the regular Five Phases, the Ten Gods and the chart's structure, so Na Yin is best read as a symbolic reference.
Find the Na Yin of your year pillar
The free calculator lists the Na Yin of every pillar and changes the year at Lichun, so your year pillar's Na Yin is always right.
For cultural learning, self-reflection, and entertainment. AI interpretations may be incomplete or inaccurate and are not professional advice.