I want to bring an obsidian, because the eight characters and five elements are short of water, but some people say that bad black will hinder the circulation of the five elements. I don't know if there is such a saying, but I can offer a reward in detail.
1: Five elements are short of water. If the land and piers are short of water, it is really short of water.
2. The attribute of obsidian itself belongs to soil, which can block the circulation of water in the five elements, and the five elements are short of water (provided that the five elements use God as water). This problem is not black, but black belongs to water, which is helpful to water. The problem is obsidian.