This is one of the eight trigrams, bundled together in the shape of ☶. It is also one of the 64 hexagrams, composed of two trigrams like this. In the eight-trigram system, it symbolizes the mountain. The mountain is still, meaning that everything can be brought to a conclusion and gets what it is supposed to obtain. The term is composed of one unbroken line and two broken lines. It is considered a yang trigram and symbolizes the male. As the unbroken line lies above the two broken lines, it is considered to stand for the youngest son of a family.