The Snake is associated with the Kan trigram. Kan represents water, the single Yang line between the two Yin lines represents a river running through a gorge. Inside the body, it is the kidneys and the ears on the outside. In the martial arts, it is the Flowing Palm.
The Flowing Palm Change turns to the outside of the circle. Because of this, you will not change direction after completing this sequence of movements and will have to add a Single or Double Palm Change to practice Snake in the other direction.