Some people say that the first-class teacher looks at the stars, the second-class teacher looks for the water gap, and the third-class teacher walks all over the mountain! The first class teacher looks at the stars: What are the stars? The first-class earth teacher looks at the stars, that is, by looking at the stars of the dragon (Luan Tou or Li Qi) to judge the cave-shaped knot. Stars are also dragons, and the five elements are born in caves, and there must be knots! If you enter each other's holes, the shape is beautiful, and the blessing is at the end, and the disaster is ahead! Whether it is a blessing or a curse depends on your eyes!