Chotrul Duchen

Chotrul Düchen, (Eng. Miracle Manifestation Great Day; also known as Chonga Choepa or the "Butter Lamp Festival"), is one of the four Tibetan Buddhist festivals commemorating four events in the life of the Buddha.^[1] Chotrul Düchen occurs on the first full moon (Bumgyur Dawa) of the fifteenth day after Losar, the New Year in the lunar Tibetan calendar. The preceding fifteen days are called the Miracle Month that celebrates miracles the Buddha displayed in Sravasti for his disciples and guests so as to increase their devotion.^[2] During Chötrul Düchen it is believed that the effects of both positive and negative actions are multiplied ten million times.

Chotrul Düchen
Tibetan name
Tibetan	ཆོ་འཕྲུལ་དུས་ཆེན་
Transcriptions Wylie cho-'phrul dus-chen

Chonga Choepa
Tibetan name
Tibetan	བཅོ་ལྔ་མཆོད་པ་
Transcriptions Wylie bco-lnga mchod-pa

Butter lamps being lit at a temple

To commemorate the occasion, Tibetan Buddhists make lamps, traditionally of yak butter but now usually of vegetable ghee called butter lamps, in the shapes of flowers, trees, birds, and other auspicious symbols. They also create elaborate displays for the lamps in their homes and in public spaces, sometimes erecting structures as large as a building. All the lanterns are lit in celebration on the fifteenth day of the month.^[3]