What is "the sky"?

Full heaven means that a person's forehead is prominent and full, which means good luck. Heaven is synonymous with the foreheads of ancient people in China. The complete word should be "Heaven is complete, Fiona Fang is a beautiful place", which is often mentioned in physiognomy.

The ancients divided a person's face into three equal parts: upper, middle and lower parts, corresponding to three parts respectively: Tang Yin to hairline, Tang Yin to prospective head (nose) and nose to chin.

The ancients often described a person's beauty as "Fiona Fang is everywhere". The so-called "full heaven" means that the forehead is broad and even, and the middle and lower parts are prominent. Generally speaking, the upper part of the forehead is dominated by reasoning, the middle part is dominated by memory, and the lower part is dominated by intuition. If the three parts are even and full, it shows that this person's intellectual development has a good physiological basis.

From the perspective of traditional Chinese medicine, the forehead is the main fire, and the color of the forehead can show the health status of cardiovascular and cerebrovascular diseases. A full day means a broad forehead, such as Li Ka-shing's forehead, which is not only full but also has a natural radian of uplift.