2. The sword finger, also known as the sword tactic, is in the following posture: the ring finger and the little finger are bent, so that the thumb is pressed on the nails of the two fingers, and the index finger and the middle finger are close together and straight.
3. Sword finger is widely used in Taoism, which can be used for exorcism, line drawing and pointing at the target at a specific time. This method is the simplest, the thumb is right in the middle of the ring finger, the belly of the ring finger is pressed against the thumb nail to cover the nail, and the little finger and the ring finger are bent flat together.