What are dragons and white tigers in Feng Shui?

In geomantic omen, left Qinglong, right White Tiger, former Suzaku, and later Xuanwu. A, B Oriental wood, starting from Qinglong, is also a treasure trove of geomantic omen. Among them, the green dragon and white tiger palm in all directions, Suzaku Xuanwu is suitable for yin and yang, and Ding Bingnan fire rises from Suzaku. Central Wuji soil, hook Chen, Teng snake. Geng Xin WESTERN Golden White Tiger Hotel. Guiren North Water, Xuanwu