Pilgrims pour melting butter from their lamps into the yak butter lamps in the monastery, topping them up continually, Lhasa, Tibet, China, Asia

Woman adding yak butter from her butter lamp to those in the Buddhist temple, Meru Nyingba monastery, Bharkor, Lhasa, Tibet, China, Asia

Woman adding the melting yak butter from her lamp to those of the temple, Meru Nyingba monastery, Bharkor, Lhasa, Tibet, China, Asia

Pilgrim and Tibetan monks refilling the brass bow with yak butter, Samye Monastery, Tibet, China, Asia