In the game "World of Martial Arts", there is a rather special dungeon - the Five Elements dungeon. There are five copies of the Five Elements: "Gold", "Wood", "Water", "Fire" and "Earth".

The Five Elements, also called the Five Elements Theory, is the basic way to understand the world. The meaning of the Five Elements includes five basic dynamics through the evolution process of Yin and Yang: metal (representing gathering), wood (representing straightness), water (representing infiltration), and fire ( represents heat), earth (represents biochemistry). Chinese philosophers use the Five Elements theory to explain the formation of all things in the world and their interrelationships.

The concept of the Five Elements began in "Shang Shu" and simply refers to the five common natural materials of water, fire, wood, metal and earth. Later, through the development and evolution from the Spring and Autumn Period and the Warring States to the Han Dynasty, on the basis of the thinking of mutual generation and mutual restraint, it was also attached to Elements such as yin and yang, four seasons, five directions, and five virtues form a complete five-element system model.

The five elements are mutually reinforcing and interfering, and mutual generation refers to the relationship between two types of things with different attributes that help and promote each other; specifically: wood generates fire, fire generates earth, earth generates metal, metal generates water, and water generates wood. Mutual restraint is the opposite of mutual generation, which means that the relationship between two types of things with different Five Element attributes is mutual restraint; specifically: wood restrains earth, earth restrains water, water restrains fire, fire restrains metal, and metal restrains wood.

In the Five Elements theory, the south belongs to fire, the east belongs to wood, the north belongs to water, the west belongs to metal, and the center belongs to earth, which helps the balance of metal, wood, water and fire.