What do the four houses in the East and the four houses in the West refer to in Feng Shui?

Feng Shui uses the "dichotomy method" to divide it into four east and west lives; the four east lives are heavenly medicine, vitality, longevity, and position; the four west lives are death, six evil spirits, five ghosts, Disaster; Of course, it depends on the year you were born, because the four directions of east and west are relative. For example, in 1990, the boy's position was due south, and the direction of east and west was good for him; while the direction of girls was in the northeast, so the direction of west and four was suitable. She.