The Butter Lamp Festival at Drepung

They begin making the sculptures in October.

Three months before the festival, teams of monks at Drepung begin the work. Butter is the medium — yak butter, the primary fat of the Tibetan plateau, tinted with mineral pigments to produce the entire spectrum of colors that Tibetan iconography requires. The sculptures can be three stories high. Their subjects are the great figures of the tradition: Tsongkhapa, whose death day the festival honors; the Medicine Buddha in his lapis-blue glory; the fierce protectors; the peaceful bodhisattvas; the mandala palaces of the major tantric cycles.

The work is exquisitely precise. Monks who specialize in butter sculpture spend careers mastering the technical vocabulary of Tibetan religious art in a medium that requires working in the cold — butter becomes too soft at temperatures above freezing, so the sculpture rooms are unheated in winter and the sculptors’ hands must work quickly enough to prevent the body warmth in their fingers from distorting the medium.

The sculptures are not meant to last.

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This is the teaching, visible to anyone who asks why the monks spend three months on objects that will be burned in a single night.

The tradition’s answer is not sentimental — it is philosophical and precise. The butter sculptures are offerings. An offering is, by definition, given. What is given is not retained. The three months of work and the three hours of display and the midnight burning are all one gesture: the giving of the best thing you have, with no reservation about its return.

The impermanence of the butter sculptures is not a flaw in the offering. It is the offering’s completeness. A permanent sculpture would be a possession — beautiful, possibly sacred, but retained. The butter that burns becomes smoke that rises as offering. The offering is received. The cycle is complete.

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At midnight on the fifteenth day of the first month, the lamps are lit.

The entire perimeter of Drepung is illuminated. The butter sculptures, which have been dark during their display, are each topped with a flame. Thousands of small butter lamps placed on every available surface in the monastery compound join them. The monastery, which sits on the hillside above the Lhasa valley, becomes visible from miles away as a constellation of lights against the darkness.

The monks who made the sculptures do not watch them with the attachment of artists watching their work. The tradition trains against this specifically: the sculptor is not the owner of what they have made, and the maker’s ego has no special claim on the offering. What the monks watch is the burning itself — the fire accepting what has been given.

Tsongkhapa, in whose honor the festival is primarily held, died on a winter night in 1419. The tradition says that at the moment of his death, butter lamps throughout Tibet spontaneously lit themselves, or that the sky was unusually luminous, or simply that the winter night was different than ordinary winter nights. The Chunga Choepa festival, burning its thousands of lamps on the winter hillside every year, is the continuation of that luminosity — the community’s ongoing offering to the teacher who, in the Gelug understanding, remains present and active across the centuries.

The smoke rises. The dawn comes. The monks begin to prepare for the next year’s sculptures.