What does "pointing the palm of the hand to determine the acupoint" in traditional Feng Shui mean?

What does "pointing the palm of the hand to determine the acupoint" in traditional Feng Shui mean? ——A metaphor for acupoints, acupoints, and no acupuncture points. The palm of a person's hand is originally a "palm point"; in the natural terrain, there is a natural terrain like a person's naturally outstretched palm, with the thumb touching, and the acupuncture point is on the side of the palm of the person's hand that is close to the person, which is a characteristic of having acupuncture points. A person's thumb and second finger are drawn into a sealed or unsealed circle. The position of the tiger's mouth is the tiger's mouth hole, and the second finger is the shape of a green dragon or a white tiger. The natural terrain in the wild has such a shape, which is also a characteristic of having holes.