December 14th, also known as October 25 in the Tibetan calendar, is the Gelug school of Tibetan Buddhism's Butter Lamp Festival. In Gandan monastery, the ancestral temple of Gelug Sect of Tibetan Buddhism in Lhasa, Xizang Autonomous Region, believers lit butter Lamps to pray for peace and good luck.  Butter Lamp Festival is an event held to commemorate the passing of Tsongkhapa, the founder of the Gelug sect of Tibetan Buddhism, with a history of over 600 years. The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers orderly placing butter lamps at Ganden Temple.

The picture shows Ganden Monastery illuminated by butter lamps on Butter Lamp Festival.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows a panoramic view of Ganden Monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.

The picture shows believers lighting butter lamps inside Ganden monastery.