A candlelight vigil or candlelit vigil is an outdoor assembly of people carrying candles, held after sunset in order to show support for a specific cause. Such events are typically held either to protest the suffering of some marginalized group of people, or in memory of the dead. In the latter case, the event is often called a candlelight memorial. A large candlelight vigil will usually have invited speakers with a public address system and may be covered by local or national media. Speakers give their speech at the beginning of the vigil to explain why they are holding a vigil and what it represents. Vigils may also have a religious or spiritual purpose. On Christmas Eve many churches hold a candlelight vigil.