Tanabata Festival is also known as what festival (why Tanabata Festival is also known as Daughter's Day)

The first day of the seventh month of the lunar calendar is the first day of the lunar year, and the second day of the lunar year is the first day of the lunar year that a person is born.

So why did the ancients think that women were closely associated with "seven"? The ancient people usually take odd numbers as yang and even numbers as yin, so why does the number "seven" represent women? Academics are divided on this. The author believes that, to trace back to the roots, the ancients are to follow the "moon - fertility - women" such thinking to consider.

In ancient times, people observed the sun, the moon, and the stars with their naked eyes to determine the time and direction, and formulated the calendar. On this basis, astrology was born, that is, through the operation of the celestial bodies to divine good and bad luck, predict natural disasters, the winners and losers of wars and the fate of individuals. Yi Chuan - Department of Rhetoric, said: "The sky hangs down the image, to see the good and bad, the saint of the elephant." From this, we can see that astronomical knowledge in the early civilization of mankind occupies a very important position, which also produces astronomical myths and mysterious numbers and so on.

"Zhou Yi - Department of Rhetoric," said: "Hanging image of the Ming, no greater than the sun and the moon. The meaning of yin and yang matches the sun and the moon." The sun and the moon are the most easily observable natural celestial bodies for human beings, and they can be seen when they look up. The sun is yang and the moon is yin, an ancient concept. The moon is a symbol of women, for the essence of Tai Yin, for the woman, for the mother, the female master, the queen.

Ancient people found through observation, the moon is full and the moon is short, the surplus and the deficit continue, so they think the moon has a strong fertility, can be born endlessly, which derived from the concept of the moon on behalf of women.

"Sojourners" said: "Sun Jian's wife, Huaiquan, dreamed of the moon in her arms, and told Jian: 'I used to dream of the day in my arms, and now I dream of the moon.' Jian Ri: 'The children and grandchildren are prospering.'"' It can be seen that the folk concept of dreaming of the moon as a symbol of the prosperity of children and grandchildren.

According to the cultural system of yin and yang, a symbol system of the moon, a yin and a female was formed. In ancient Chinese mythology, the goddesses of the moon were all gods of marriage and reproduction. Myths of the moon goddesses, such as Chang Xi, Xi Wang Mu, and Chang E, symbolize "the reproduction and eternity of life".

The Sixth Dynasty's Inner Biography of Emperor Wu of the Han Dynasty records that on the seventh day of the seventh month, she gave four peaches of immortality to Emperor Wu of the Han Dynasty to eat. This noble goddess or fairy of this action in the month, the day heavy "seven" time, gave birth to seven girls, July 7 down to the Han Wu Di place as a guest, and the beautiful and kind of the seven fairies, offending the rules of the heavens and the poor people on earth to marry, and later the Taoist Church and further to the Queen Mother of the West on the Jade Emperor Queen's throne, which, of course, will be in the invisible conclusion or deepen women's relationship with the number "seven", the "seven" is a very important part of the "seven". This is a great way to deepen the bond between women and the number "seven".

After the Tang Dynasty, the folk appeared in the main marriage "moon old", he has to tie the couple's feet of the "red rope", in fact, refers to the "children and grandchildren rope", the moon old is the god of the moon from heaven to the folk, from God to man. The moon god is the moon god from heaven to the folk, from god to human composite form, this form is the natural evolution of the moon as the god of life.

Thousands of years ago, the pioneers, through observation, discovered that the moon's cycle of gains and losses is 28 days, which is almost identical to the female menstrual cycle. The ancients then linked the religious feeling of worshipping the moon to the moon's waxing and waning cycle and the female menstrual cycle.

And then, the ancients also found that the baby girl 7 months when the first teeth, 7 years old when the teeth began to change. At about 14 years of age, the first menstruation comes, and at 49 years of age menopause. In addition, a woman's gestation period is about 280 days. The rhythm of female development is based on the number of sevens.

Huangdi Neijing - Suwen Shanggu Tianzhen theory said: "Women are seven years old, the kidneys are full of vitality, the teeth are more hair long; two seven and the days of the decadal to the Ren pulse through the tai Chong pulse is full of menstruation to the time of the next, so the son; three seven kidneys are average, so the real teeth are born and the longest pole; four seven sinews and bones, the hair is long and extreme, the body is full of shape; five seven Yang Yang, the body is the most important thing in the life of the world. The body is in full bloom; the Yangming Vessel fails in the fifth and seventh year, the face begins to scorch and the hair begins to fall; the three Yang Vessels fail in the sixth and seventh year, the face is scorched and the hair begins to turn white; the Ren Vessel fails in the seventh and the Taichong Vessel fails in the seventh year, the Heavenly Decadence fails, the Earthly Path is impassable, and so the form is bad and there is no child."