Every Spring Festival the clan gathers at the ancestral hall to offer sacrifices.
Tips
culture
祠 is a hall for honoring ancestors or famous figures, most often 祠堂 (clan ancestral hall). Memorial shrines to honored people also use it, like the 武侯祠 dedicated to Zhuge Liang.
The altar radical in its left-side form, from 示 (an altar for offerings). It marks the character as something to do with sacrifice and worship - here a shrine. It groups 祠 with 神, 祖, and 祭.
