Traditionally, in some areas, Hakkas pay homage to their ancestors and sweep graves in spring, mostly starting from the vernal equinox or earlier, and ending the sweep in Tomb-Sweeping Day at the latest.

In the past, there was a saying that after the Qingming Festival, the tomb door was closed and the ancestors' spirits could not be used.

In short, it is enough to sacrifice the grave to "catch up early and not catch up late" now.