以上摘自《藏传佛教神明图谱 金刚神》P184
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Buddhakapala, meaning the skull of the enlightened one, is a meditational deity belonging to the Wisdom Class, or Mother Tantra, of Anuttarayoga/yoganiruttara Tantra of Tantric Buddhism.
There are several different forms of Buddhakapala. Sometimes he appears with a consort and sometimes without. He can appear in single aspect or with a mandala of eight or twenty-five retinue deities.