What does the arrival of the long summer solar term mean?

May 5th or 6th every year is the long summer of the lunar calendar. "The bucket refers to the southeast, and the dimension is long in summer. Everything grows here, hence the name Long Summer. " At this time, the longitude of the sun is 45 degrees. Astronomically, Chang Xia said that bidding farewell to spring is the beginning of summer days. When the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season, people are used to taking long summer as an important solar term.