Finnish people clean their homes well before Christmas and prepare special treats for the festive season. A sheaf of grain, nuts and seeds are tied on a pole, which is placed in the garden for the birds to feed on. Spruce trees are cut or bought from a market and taken to homes on or a few days before Christmas Eve and are decorated. Candles are lit on the Christmas tree, which is traditionally decorated using apples and other fruit, candies, paper flags, cotton and tinsel, in addition to Christmas ornaments such as stars or baubles. Actual candles are no longer used, being replaced by incandescent or LED lamps. A star symbolizing the Star of Bethlehem is placed at the top of the tree. Just before the Christmas festivities begin, people usually take a Christmas sauna. The tradition is very old; unlike on normal days, when one would go to the sauna in the evening, on Christmas Eve it is done before sunset. This tradition is based on a pre-20th century belief that the spirits of the dead return and have a sauna at the usual sauna hours.