Feng shui, how to determine the location of the indoor dragon and white tiger?

Because the indoor center is the axis, the indoor center is the scarf in the west, the west faces south, the Suzaku in front of the Shuihu of the North Satellite TV in the city center, and the position of the southeast Qinglong is the division of family geomantic omen. The indoor center should be Wuji soil, Xuanwu, wood in the north and the east, fire in the middle and fire in the south.