Paired with the branch Si, the Snake is the late-morning creature coiled on a warm stone: outwardly still, inwardly at full attention. The classical texts make it the sign of perception held in reserve.
The Snake belongs to the branch Si (巳), corresponding to years such as 1989, 2001, 2013 and 2025 — with the switch at lichun in early February. Si marks the hours of 9am–11am and is Fire in its birth phase: heat that is arriving, not yet at noon strength.
A snake sees without moving its head. Classical commentary on Si emphasizes observation, patience and precision of timing — and also transformation, because the snake sheds its skin and leaves the old self behind intact but empty. The image is of intelligence that does not announce itself: research done quietly, words chosen late.
Si hides Bing (丙) Fire, Geng (庚) Metal and Wu (戊) Earth — fire with metal and structure already inside it, an unusual mixture. Classical readers also pair Si with Shen (申, the Monkey) in a relationship called "combined then clashed": attraction and friction in one axis. A full chart shows which of these voices the Snake branch is speaking in your life.
Each pairing below has its own page: the classical relationship, the two temperaments side by side, and reflection prompts. Read them as lenses on working styles, not as filters for people.
This sign in the 2027 Fire Goat year → Snake in 2027