The iron tree is a Feng Shui tree and has the effect of transforming evil spirits. But it shouldn't be a shape-shifting evil. It is not suitable for planting in the courtyard, and it is impossible to eliminate the influence of Yin and Si in the horoscope. The horoscope is an innate symbol, which is based on the five elements. Use the gods to like and avoid things. Good luck will bring good luck, and bad luck will bring misfortune. When you have bad luck, you should pay more attention to the attributes represented by the five elements and avoid things related to them. For example, Yin belongs to wood, which represents the east, the color is green, etc. and industries related to wood.