What does it mean that the dragon looks up in the lunar calendar?

Dragon heads up in the north, and February 2 is also called Dragon Head Up Day, also called Spring Dragon Festival. In the south, the dragon raising its head is also called the outing festival. It is the ancient name for solar terms. The rise of the dragon represents the arrival of spring and the recovery of all things, indicating that a year's farming activities are about to begin.

The origin of "the dragon looks up";

In ancient times, people used 28 nights to indicate the positions of the sun, the moon and the stars in the sky, so as to judge the seasons and remind the farming season, which was recorded in the Book of Rites and the Moon Order. In the twenty-eight lodgings, the horn, sound, rafters, room, heart, tail and dustpan constitute a complete dragon constellation, in which the horn is like the double horn of a dragon. On the night of the second day of the second lunar month, the two horns of the dragon (namely, arcturus and arcturus) slowly rise from the eastern horizon. At this time, the whole body of the dragon is still hidden below the horizon, so it is called "the dragon looks up".