The meaning of the old and the new is cold and clear.

The old and new Bai Han Qing refers to the Qingming custom in Longkou County.

1, Longkou County starts from the first four days of Qingming Day, followed by five days of new, old, hundred, cold and Qing;

2. "New" refers to the memorial day of the new tomb, and the memorial day of the new tomb;

3. "Old" means going to the old tomb to worship heaven, and going to the old grave to worship heaven;

4. The "Hundred Days" is the "Hundred Days" Cold Food Festival, which is finally roughly defined as winter to the future 150 days, so it is also called "Hundred Days";

5. "Cold" is a cold food festival. In order to mourn the death of meson Tuishu, it is a custom to prohibit cooking food for three days and postpone it.

6. "Qing" means Tomb-Sweeping Day.