What is Cung Phi?
Cung Phi is a trigram in the Eight Trigrams (Ba Zhai) system (the eight trigrams Qian, Kan, Gen, Zhen, Xun, Li, Kun, Dui) assigned to a person based on birth year and gender. This trigram is regarded as that person's "life gua", also called gua destiny. From the cung phi, people are divided into two groups: East Four Life (Kan, Li, Zhen, Xun) and West Four Life (Qian, Dui, Gen, Kun).
Why is it called Cung Phi?
"Cung" refers to the eight palaces of the bagua, that is, the position of each trigram. "Phi" means to fly, indicating the movement of trigrams through time cycles. This naming reflects the idea that the qi of trigrams moves through years and months, and each person is "assigned" a trigram as their life gua at birth. Another name is gua destiny, emphasizing that this is the trigram tied to an individual's destiny.
How to determine cung phi
There are two common methods. One uses a formula from the lunar birth year and gender, then reduces to one of the eight trigrams. The other consults pre-made cung phi tables by birth year found in many feng shui texts. Both yield the same result if applied correctly. Note that the birth year used in feng shui is usually the lunar year, so those born near Tet should check carefully.
Application in feng shui
Cung phi is used to choose house orientation, main door direction, desk direction, and bed direction to match one's life gua. In Ba Zhai theory, each cung phi has four good directions (Sheng Qi, Tian Yi, Yan Nian, Fu Wei) and four bad directions (Jue Ming, Wu Gui, Liu Sha, Huo Hai). East Four Life people are often advised to choose East Four House, West Four Life people to choose West Four House. Cung phi is also used in some interior arrangement methods and in choosing colors and objects according to the trigram's five elements.
Distinction from easily confused concepts
Cung phi differs from yearly life five elements (nayin). Yearly life five elements is based on the year's stem and branch and yields an element (Metal, Wood, Water, Fire, Earth), while cung phi yields a trigram in the bagua. A person may have a Water yearly life but a cung phi of Gen (Earth). Cung phi also differs from zodiac signs in Western astrology, which are based on solar birth date. Additionally, one should distinguish a person's cung phi from a house's cung position: cung phi belongs to the individual, while cung position is a directional location in space.
Notes on use
Cung phi is part of traditional feng shui knowledge and is for reference. Conclusions about good and bad, compatibility and conflict have not been scientifically verified. Readers should view it as a cultural perspective and should not apply it rigidly or let it negatively affect practical decisions about housing and life.