What is entering the first dragon?

When the dragon enters the head, it refers to the situation and defense direction of the dragon veins melting into the acupoints. Feng Shui is used to observe the end of the mountain range in the Yuan Bureau, which is called "entering the head".

Feng Shui is based on the power of dragon veins, which can be divided into flying dragon in the head, returning dragon in the head, horizontal dragon in the head, straight dragon in the head, hidden dragon in the head, etc.