1) The technique and usage of hands
In the routine, the hands must have dexterity, and they change with most applications. In Taijiquan, there are three usages of the hands: palms, fists and hooks.
(1) Palms
In Taijiquan, there are a lot of applications with the palms. The general requirements of the palms are: extending but slightly bending the five fingers naturally. The four fingers, except the thumb, are held together relaxed, a little open, without being forced. The thumb is separated from the other four fingers naturally; relax the part of the hand between the thumb and the index finger. Empty the center of the palm to form a shape of a socket. Keep the palm and fingers relaxed (see Fig. 1-4-1A). The changes of the palms are as follows:
A. Zheng Zhang (Frontal Palm): The tips of the fingers point upward, and the center of the palm faces forward (see Fig. 1-4-1B). This type of palm often appears in the moving of an attack.
B. Li Zhang (Standing Palm): The tips of the fingers point upward or partially upward, and the center of the palm faces any direction except to the front (see Fig. 1-4-1C). This is the main type of palm used in Taijiquan. In most cases, the center of the palm is partial to facing downward; it is the type of hands used when Yin is more than Yang. It is also called four-six hands (six Yin and four Yang).
C. Zhai Zhang (Side Palm): The tips of the fingers point forward, and keep the palm facing to the side (see Fig. 1-4-1D). This type of palm often appears in the moving of an attack.