The long-life deity/ishtadevata, Ushnishavijaya 'Victorious Crown Ornament,' is one of three special long-life deities along with the Buddha Amitayus and White Tara. This group is known as the Three Long Life Deities (Tibetan: tse lha nam sum). There are other deities associated with long life and healing but these three are commonly referred to as the principal deities and form their own group. The three were not formulated in India but rather popularized as a Tibetan iconographic convention.
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尊胜佛母是一尊寂静端庄形佛母，源于《佛顶尊胜陀罗尼集经》的记载。据称，她救世急切，慈悲无量，如果修持尊胜佛母法门，能增长寿命及福慧，消除无始以来一切罪业，免除一切凶灾，所以历史上深受藏蒙佛教信徒的崇奉。（以上摘自“龘藏”）
