What does the white tiger mean by reaching out to build a house in the countryside?

There are many contradictions in building houses in rural areas, one of which is the feng shui pattern of "white tiger reaching out". The white tiger is in the west and the green dragon is in the east. The white tiger reached a finger, and the neighbor's house in the west was not even in his own house, but extended to the south. It is said that this is to kill people, and it is the first evil spirit outside the cemetery.