Hidain lamp CULTURE — A religious object. Hidain lamps, also called → tween lights, are set during high festivals and serve a variety of purposes. Tween lights come in many different forms, but the most prevalent are any bucket or container that can be filled with burning candles, tallow, or twigs. Common examples include hollowed-out gourds, clay pots, holes dug into the earth (generally surrounding a home or sacred place) and typically filled with burning logs, and skulls (though these are reserved for the darker arts and are most often used during → Sauingrey).