The 12 boxes represent the checkerboard of a paddy fields where the 109 stars
(or energies) with poetic names (King of the Stars, Palace, Blue Dragon,
Servitor, Honest, Seven-Swords. . .)
Their distribution depends on the birth data (Chinese Year, Chinese Moon,
Chinese Day and Chinese Hour) and on the sex. The date is computed according to
the Chinese division of the year in 12 or 13 moons. The solar hour of birth is
likewise converted into a Chinese lunar hour (12 hours a day).
Each energy is more or less powerful: it can be faint (&), neutral, shining (*),
very shining (**) or sparkling (***), according to the date and hour of birth.
houses (or Palaces) are then settled, corresponding each to one of the
twelve previous boxes. These Houses govern the particular aspects of a human
life: Destiny, Parents, Luck, Vocation...
Remark: a Chinese year is characterized by:
. its polarity
. its 5 Elements (Wood, Water, Fire, Metal, Earth),
. its Earth Branch or number in a cycle of 12 years (Rat, Buffalo...) ,
. its Heaven Stem (or root), i.e. a number in a cycle of 10 (Giap, At, Binh,
Dinh.. . . in Vietnamese or Jia, Yi, Bing, Ding. . . in Chinese).
For instance, 1997 is Yin, its element is the Water of the little Stream and it
is a year Buffalo of Dinh (Ding-Chou in Chinese).
1955 is Yin, its element is Metal in the Desert and it is a year Goat of At (Yi-Wei).
All these characteristics play a part in the positioning of the energies.
The Chinese year consists of 12 moons, and even of a 13th one sometimes, called
the intercalary moon. This additional moon, that does not fit in the 12-based
system, is shared among the adjacent moons.
A technical detail: for the great majority of Chinese astrologers, the first
Chinese Hour (the Rat Hour) begins at 11H pm (23 H). The program agrees with