The Meaning of the Earthly Branch Sa (巳) — Snake Sign & Fire (火) Comprehensive Guide

Sa (巳) marks the beginning of summer and the most productive hours of the morning. Much like a snake shedding its skin, it represents constant self-renewal; while it may appear cold on the surface, it is a Fire (火) position that burns intensely within.

At a Glance

Category	Content
Hanja	巳
Zodiac Animal	Snake
Five Elements · Yin/Yang	Fire (火) · Yin (陰)
Season (Solar Terms)	4th Lunar Month (from Ipha)
Time	09:00 – 11:00
Hidden Stems (支藏干)	Wu (戊) · Geng (庚) · Bing (丙)
Key Keywords	Insight, Sophistication, Focus, Transformation

Personality Traits

Individuals with a strong Sa-Fire (Sa-hwa) are brilliant and possess sharp intuition, allowing them to grasp the core of any matter quickly. They are characterized by refined tastes, meticulous work habits, and the ability to focus quietly and intently on their goals, much like a snake coiling around its prey.

San-hap and Chong

It forms the Metal Bureau (金局) through the San-hap of Sa-You-Chuk (巳酉丑). It clashes with Hae (亥) in the Sa-Hae-Chong (巳亥沖)—a clash of the ‘Traveling Star’ (Yeokma), which is associated with long-distance travel and international changes.

Frequently Asked Questions

Q. There is an impression that those born in the Year of the Snake are cold. Is this true in Saju (Four Pillars) as well?

A. Sa-Fire has a structure of ‘Yin on the outside, Fire on the inside,’ so the first impression is merely calm or chic, while the inner nature is passionate. They are the type to become warmer as one gets closer to them; it is more accurate to interpret this as ‘selective openness’ rather than coldness.

---

In Saju, Earthly Branches represent ‘time and environment.’ The manifestation of the same character varies depending on whether it is located in the Year, Month, Day, or Hour pillar, and what kind of combinations (Hap) or clashes (Chong) it forms with surrounding characters.