What is the meaning of "Yu" in the ancient "six arts"

The skill of driving a carriage.

Ming and Luan: when driving, it corresponds to Luan.

Water-driven car: gallop along the curved river bank without falling into the water.

Hand over the imperial watch: It is polite to hand over the imperial watch.

Dance: cross the strait and gallop freely

Chasing birds to the left: chasing animals and catching them from the left when hunting.

Yu: The five skills of driving a carriage and chariot are: singing Luan, chasing water songs, crossing the king's table, dancing across the road and chasing birds to the left. Zhou Li Local Officials and Bao's: "This is the six arts of teaching ... four words and five controls." Zheng Xuan's note: "Five controls: singing and falling in love, chasing water, crossing the princess table, dancing and crossing the street, chasing birds to the left." It means that when driving, the corresponding sound is Luan; The car galloped with a curved bank without falling into the water; After the son of heaven appeared, there was etiquette; Free driving through the waterway; When hunting, the chasing animals were shot from the left.

The other six arts:

Ceremony: Etiquette (similar to moral education today). Five rites, auspicious, fierce, guest, army and Jia also.

Le: Music. Six kinds of music: Cloud Gate, Daxian, Dashao, Daxia, Daxie and Dawu.

Shooting: archery technique. These five shooting methods are: white arrow, joint, injection, ruler and well instrument.

White arrow: the arrow passes through the target, and the arrow is white, indicating that the arrow is accurate and powerful.

Connection: put a vector in front, and the last three vectors go away one after another. If the beads are in the same position, the vectors belong to each other.

Note: it refers to the disease of the arrow, and the aiming time is short, and the arrow will hit on the string.

Xiang Chi: I'll shoot with you. I'll stand side by side with you and let you take a step back.

Well gauge: the four vectors are coherent and all hit the target.

The skill of driving a carriage.

Ming and Luan: when driving, it corresponds to Luan.

Water-driven car: gallop along the curved river bank without falling into the water.

Hand over the imperial watch: It is polite to hand over the imperial watch.

Dance: cross the strait and gallop freely

Chasing birds to the left: chasing animals and catching them from the left when hunting.

Books: refer to the six books of calligraphy (writing, literacy and composition): pictographic, indicative, knowing, pictophonetic, phonetic, annotation and borrowing books.

Number: number refers to rational number and qi number (the law of usage), that is, the movement law of yin and yang and five elements. Guangya: "Number, skill also." That is, technology, methods and skills.