In astrology, the sun represents your main personality and body. More than 20 years ago (about 1990s), astrology rose in East Asia. At that time, as long as you know when you were born, you can roughly judge your personality. For example, people often say that Virgo loves neatness, Sagittarius loves freedom, Libra loves peace, and so on. This simple and rude way can quickly sum up a person's characteristics.
However, when we only discuss the (sun) constellation, people gradually find that some people are accurate and some people are not, so some astrologers throw out the concept of "rising constellation". But how can we distinguish between "rising constellation" and "rising constellation"? Then someone began to spread the phrase "Look at the rise after the age of 30", and the public accepted this message without understanding-oh! The sun constellation looked at me before I was 30, and the rising constellation looked at me after I was 30.