Duan Yi
Eliminating termites.
Refers to eliminating termites. Termites bore into and damage the beams, pillars, or furniture of wooden buildings, causing serious harm to a house's structure. Traditionally, choosing an auspicious day to perform 'Duan Yi' is done in the hope that the termite elimination will be thorough, and to pray for household peace and freedom from pest infestation, reflecting the old emphasis on residential safety.