
Day Master · 10 of 10 · free study page
Gui 癸: Yin Water, rain and mist
A name you can say out loud: what the Gui image describes, where it sits among the five elements, and how it compares with the other nine stems. Nothing to fill in.
At a glance. Gui (癸) is the Yin Water stem, one of ten possible Day Masters. A Day Master is the stem of the day pillar, the reference point for describing a BaZi chart. The image describes tendencies, not outcomes, and it is not a reading of you. Last update: 2026-11-14.
What the Gui image describes
Gui is pictured as rain, dew or mist: subtle, reaching places a river cannot. Teachers use the image so the stem is easy to remember. People use it to talk about tendencies such as:
- Perceiving what is not said out loud.
- Quiet influence: changing things slowly and widely.
- Reaching places that force cannot.
The stretch in the image: letting its influence be visible and named.
These are tendencies the image is used to talk about. They are not a description of you, and they do not predict anything. A full chart has eight characters; the Day Master is one of them.
Interactive
Where Water sits among the five elements
Choose a relation, or tap a circle on the wheel. Each one is a word BaZi uses to describe how the rest of a chart relates to the Day Master.
Solid: feeding cycle (生). Dashed: shaping cycle (克). Outlined: Water.
Same element · Companions 比劫
Other Water stems sit beside Gui as peers. In chart vocabulary this group is called Companions (比劫): people and pressures that are like you. It names a relationship, not a rival or a friend.
What it feeds · Output 食伤
Water feeds Wood (水生木). In chart vocabulary, what the Day Master feeds is its Output (食伤): expression, making, saying. It describes a direction of energy, not talent or luck.
What it shapes · Wealth 财
Water shapes Fire (水克火). In chart vocabulary, what the Day Master shapes is called Wealth (财): what it works on and manages. Despite the name, it is not a money forecast.
What shapes it · Officer 官杀
Earth shapes Water (土克水). In chart vocabulary, what shapes the Day Master is called Officer (官杀): rules, deadlines, responsibility. It describes structure, not punishment.
What feeds it · Resource 印
Metal feeds Water (金生水). In chart vocabulary, what feeds the Day Master is called Resource (印): learning, support, rest. It is a kind of input, not a guarantee of help.
Compare
Gui next to another Day Master
Pick a friend's stem, or one you are curious about, to see how the two elements relate in BaZi vocabulary.
癸 Gui and 甲 Jia (Yang Wood, the tall tree)
Water feeds Wood (水生木): Gui's element flows toward Jia's. They have opposite polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Jia page
癸 Gui and 乙 Yi (Yin Wood, the vine and the grass)
Water feeds Wood (水生木): Gui's element flows toward Yi's. They have the same polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Yi page
癸 Gui and 丙 Bing (Yang Fire, the sun)
Water shapes Fire (水克火): Gui's element acts on Bing's, the way an axe works wood or a dam holds water. They have opposite polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Bing page
癸 Gui and 丁 Ding (Yin Fire, the lamp and the candle)
Water shapes Fire (水克火): Gui's element acts on Ding's, the way an axe works wood or a dam holds water. They have the same polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Ding page
癸 Gui and 戊 Wu (Yang Earth, the mountain)
Earth shapes Water (土克水): Wu's element acts on Gui's. They have opposite polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Wu page
癸 Gui and 己 Ji (Yin Earth, the field)
Earth shapes Water (土克水): Ji's element acts on Gui's. They have the same polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Ji page
癸 Gui and 庚 Geng (Yang Metal, the blade and the ore)
Metal feeds Water (金生水): Geng's element flows toward Gui's. They have opposite polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Geng page
癸 Gui and 辛 Xin (Yin Metal, the jewel)
Metal feeds Water (金生水): Xin's element flows toward Gui's. They have the same polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Xin page
癸 Gui and 壬 Ren (Yang Water, the river and the sea)
Both are Water. Gui is Yin Water and Ren is Yang Water: the same element with opposite polarity. This is vocabulary for how two elements relate. It is not a compatibility score and says nothing about how two people will get on. Open the Ren page
Element relations describe structure. They are not a compatibility score.
Not sure Gui is yours?
Your Day Master is the top character of your day pillar. The free Element Check finds it in about a minute; it runs in your browser, and your birth date is not sent to us. For what a Day Master is, see What is a Day Master?; for all ten teaching images, see Day Master images.
Quick answers
- What is the Gui Day Master?
- Gui (癸) is the Yin Water stem, one of the ten possible Day Masters in BaZi. It is taught with the image of rain and mist. Gui is pictured as rain, dew or mist: subtle, reaching places a river cannot.
- Is a Gui Day Master a prediction?
- No. A Day Master is the reference point for describing the rest of a chart. The image describes tendencies people use it to talk about. It does not predict events, luck, health, money or relationships.
- How do I find my Day Master?
- Use the free Element Check. It runs in your browser in about a minute, and your birth date is not sent to us. This page asks for nothing and stores nothing.
The other nine Day Masters
- 甲 Jia · Yang Wood
- 乙 Yi · Yin Wood
- 丙 Bing · Yang Fire
- 丁 Ding · Yin Fire
- 戊 Wu · Yang Earth
- 己 Ji · Yin Earth
- 庚 Geng · Yang Metal
- 辛 Xin · Yin Metal
- 壬 Ren · Yang Water
TangoEra describes BaZi as a cultural and reflective practice. Nothing on this page is a personal reading, a prediction, or professional advice.
