What does the first house of the constellation mean?

The first constellation refers to Aries Palace.

The first house "Life Palace", also known as "Ascending Palace", was originally the fixed position of Aries. The first house represents the birth of life-"I am", showing a person's character, words and deeds, health, appearance, body shape and the first impression. In modern astrology, the first house represents the people's palace.

Center position: right ascension 2: 40, declination 2 1. Between Pisces and Taurus. α, β and γ (Building 3, Building 1 and Building 2) are about 20 degrees south of Andromeda γ. α is a second-class star, which forms an isosceles triangle with Andromeda β and γ. There are five stars above level 4 in the constellation. The first house of the zodiac, with longitude ranging from 0 degrees to 30 degrees, was originally in Aries, hence its name. But due to precession, it has now moved to Pisces. On March 2 1 every year, the sun comes to this house, and the solar term is the vernal equinox, so the vernal equinox is also called "the first point of Aries Palace".