Earthly branches
巳
사(巳)
the serpent's seat
What it means
巳 sa is the sixth of the twelve earthly branches, marking the fourth month, early summer and the hours 09:00–11:00.
In the five breaths it belongs to fire, and it holds 戊, 庚 and 丙 as hidden stems.
In the trines it is the 生 seat of the 巳酉丑 metal trine.