There are many different schools of Feng Shui and many different approaches, also under the umbrella of the traditional Feng Shui. A branch or at school, the school is called BA Zhai or eight mansion. The East-West school is called.
It is the school, which relegated all structures in eight House types, based on their orientation. And also has one of the eight possible "GUA" or personal trigrams anyone based on their date of birth.
This GUA or personal trigrams are like signs of the Zodiac, as in they are based on the year of birth and have many interesting attributes that are ring true to people classified under this system. The eight trigrams are associated with directions of North, South, East, West, Northwest, Northeast, Southwest and Southeast. The trigrams are profound symbols encoded with enormous information, but a detailed description is not the subject of this article.
However, there is a controversy within this school, that many traditional doctors are not even aware. The personal GUA is a concept that began with the Foundation of Feng Shui for more than 3000 years. But originally the GUA or personal trigram only based on the year of birth and the same for both sexes. For example, if you were born in 1951, it is the Xun trigram, whether man, woman are.
In the 8th century, everything changed. A monk named Yi Xing carries by the Chinese emperor, changes in the Canon of knowledge to make known Feng Shui and to simplify a predictive art, had become highly sophisticated and evolved. Xuan Kong Aerolink star has been practiced for more than 1000 years, combined in China, where so much time are directional orientation and construction, which is 216 different cabin types not only eight types of House. Yi Xing changed the GUA system so that women have different GUA to the men, who were born in the same year. This school is a rival of the Mongol Empire corrupt doctrine to be gifted and yet this school ended practiced on a large scale and conscious world it stagnated for centuries with many modern medical controversy and the reasons why personal Gua was changed in the first place.
What adds to the confusion about which is the "true" cheerful GUA, the fact that many people more than what they can refer a GUA. This GUA show personality traits, as well as susceptibility to certain physical weaknesses. It is very likely that most of us can identify with several GUA/trigram.
For example, my personal trigram refers to the feet, and liver, trigram Zhen. I can testify that weaknesses in these areas of the body. But I can be also related to the trigram Kun (abdomen, digestive) and the trigram Kan (kidneys, blood, cardiovascular). I can really relate about all the trigrams, so one of them believable, if my date of birth would be assigned to.
My biggest published materials include BA Zhai school applications, as virtually all other traditional books. I have an addition to my books, which discussed this issue and anyone is welcome to request a copy of the supplement. However, there are many great names in the world of Feng Shui, which would be this controversy also resistant against the recognition. And that includes reliable sources of information, teachers and authors (Asian and non-Asian) who are otherwise.
No matter what Ming GUA or personal trigram you refer, usually means within the schools of flying star, there are many influences in us, which rank higher importance, when we evaluate how well or what evil can be done in a given environment. Some rooms are so good that anyone can benefit no matter the time of your birth. And some of the rooms have such bad Feng Shui, that we do not measure personal trigram of someone through these features could be affected negatively as undesirable or problematic.