They give life to the cemetery
Cemeteries in Poland wear fire and lights for Halloween, there aren't the usual flowers when going to visit the dead, instead there are graves with candles of different colors and shapes. The previous week the supermarkets are full of them. It's best to approach a cemetery on Halloween (or the next afternoon-evening) - it's spectacular and magical, everywhere has small colored lights that dance with the wind and seem to talk to each other. Paradoxically, they give life to the cemetery.