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Gimi Day Pillar (己未)
— Fire in the Sky, a fire that shines on everything

Day pillars · 2026.08.25 · 5 min read

Of the Eight Characters in Saju (四柱, the Four Pillars), the two of the day you were born are called the day pillar (ilju 日柱). It's the pillar that describes you most closely. The Gimi day pillar is the 56th stem-branch pair of the sixty Gapja (六十甲子). Below, we'll go step by step: the nature of the Day Master and day branch, then the Nayin element (納音五行), Gongmang (空亡, the Void), the Twelve Sinsal (十二神殺, twelve symbolic stars), and the next Gimi days.

What kind of pairing is the Gimi day pillar?

Picture nurturing field soil sitting on the soil of late summer. Gi Earth (己土) is the soil of a field where grain is grown. It isn't showy, but it's seen as a practical energy that takes in anything and helps it grow.

Mi Earth (未土) is the soil of the afternoon, when the sun starts to lean. It's said to be a seat that lends strength to wrapping up what you've started. In Five Elements terms, the Day Master Gi is Earth and the day branch Mi is Earth — a shape where top and bottom share the same energy. If the idea of a day pillar is new to you, it's worth reading that first.

What does the Nayin element Fire in the Sky mean?

It means a fire that shines on everything from the sky — the fire above, the fire of the sun and the evening glow. Because it lights every direction evenly rather than a single spot, it's read as an energy of brightness that gives widely. Since it hangs high where nothing can hide it, it's also interpreted as a presence that's hard to conceal.

The partner that shares Fire in the Sky is the Muo day pillar. Of the two, Gimi has a yin stem, so even with the same image it's read as the one that uses it by quietly seeping in.

How do the Day Master Gi and the day branch Mi relate?

The hidden stems of the day branch Mi are Jeong, Eul and Gi, and the main hidden stem is Gi (己). Seen from the Day Master Gi, the main stem Gi is the Ten God Companion.

It's the shape of sitting on an energy of the same element and the same polarity as you. With the same energy beneath your feet, it's seen as strong in independence and good at keeping your own pace. On the other hand, a tendency to feel awkward leaning on others is mentioned as well. If the idea of the Ten Gods is unfamiliar, we recommend starting with the Ten Gods complete guide.

When is the next Gimi day?

Since one of the sixty Gapja is attached to each day, a Gimi day comes around every 60 days. Here are the nearest dates, calculated with the Mutal Unnie Saju engine.

For someone with a Gimi day pillar, these are the days when their own stem-branch pair comes back around. Rather than sorting them into good or bad, we suggest using them as days to check in on your own pace. You can continue with the idea of iljin in the story of iljin.

What do the Void branches Ja·Chuk mean?

The Void is set by the group (decade, sun 旬) a day pillar belongs to. The Gimi day pillar belongs to the Gap-in decade, so its Void branches are Ja·Chuk. Ja (子) and Chuk (丑) are the empty seats. They're two characters of winter energy, so days when they arrive are said to be good for mulling over plans.

You don't need to drop your plans on a Gongmang day. It's seen as a day that actually gets easier if you lower your expectations a little. The concept is explained in detail in Gongmang explained.

What does the Hwagaesal position mean?

The Twelve Sinsal are set by the role a character plays within its Three Harmony group. Mi is the storage position (goji 庫地) of the Wood frame (木局) of Hae·Myo·Mi, so the Gimi day pillar's day branch sits in the Hwagaesal position.

When a storage-position character sits in the day branch, it's called Hwagaesal (華蓋殺, Canopy Star). It's a seat that accumulates inwardly rather than dazzling outwardly, so it's read as an energy that draws strength from time alone. The full picture of the twelve sinsal is in the Twelve Sinsal complete guide.

Is the day pillar all I need to look at?

The day pillar is two of the Eight Characters. Even with the same Gimi day pillar, a different birth season (month branch) and birth hour make a completely different chart. A Gi (己) born in the depths of winter and a Gi (己) born at the height of summer need different things from the start. So this note introduces the nature of the Gimi pairing — it isn't a personal Saju reading. If you're curious about your whole birth chart, start with the complete guide to reading Saju.