What does the number 7 stand for in China traditional culture?

In China's traditional culture, Qi is actually the sum of Yin and Yang and five elements, and it is a harmonious state of Confucian Tao or Taoist Qi, both of which are closely related to goodness and beauty.

Among natural numbers, 7 is the most special and interesting number, and 7 is a prime number in natural numbers. In life, 7 is widely used.

For example, in life, there are seven days in a week, the abacus has seven beads in each row, the spectrum has seven colors, and the jigsaw puzzle has seven pieces.

Culture and art: an octave natural scale, guqin seven strings, seven quatrains, the legendary seven fairies.

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In western culture, 7 is usually considered as a lucky number, but seven lucky people have a saying.

In the ancient society where productivity and science were extremely backward, the ancients hoped that the mysterious starry sky could tell them something. The ancients believed that people had something to do with the stars, and the human soul was a part of the sky. So astrologers played a very prominent role in ancient society.

The Sumerians, who founded the kingdom of Babylon, believed that all seven Obis were gods and worshipped them. I am convinced that they rule and dominate the changes of the world in turn. Therefore, the ancestors of Sumerians turned their reverence for the Seven Stars into their ancient religion. They built seven altars, offered seven sacrifices and prayed seven times.