Taishan stones are used for town houses, especially those engraved with the words "Taishan Stone Gandang". Personally, I use cinnabar stone and obsidian to ward off evil spirits. Obsidian is very powerful in warding off evil spirits, but you need to bask in the sun regularly. If you are seeking wealth, if you are educated and use your brain, use white crystal to stay smart. If you are a businessman, you can place a citrine fortune tree and a Pixiu. When placing a Pixiu, it is best to ask an expert to give guidance, arrange the position, and determine the shape and material of the Pixiu based on the five elements of Feng Shui of your home and shop.