Residents will fill a shallow bowl with water and then tie wire with a wooden cross and a sprig of basil over the bowl. Once a day the cross and basil are dipped into holy water, which is then sprinkled through the house. This ceremony is used to keep out goblins, known as Killikantzaroi out of the house.
These mischievous goblins that come from the center of the earth only appear during the twelve days of Christmas. While bratty, they’re not really evil and tend to do bratty things like souring milk and extinguishing fires. Because they are said to enter the house through the fireplace, fires are left burning all day and night during this time of year.