The phurba or kīla is a three-sided peg, stake, knife, or nail-like ritual implement deeply rooted in Indo-Tibetan Buddhism and Bön traditions. Its primary association is with the meditational deity Vajrakīlaya, embodying the essence of transformative power. The etymology and historical context of the term reveal some debate. Both the Sanskrit word "kīla" and the Tibetan "phurba" are used interchangeably in sources.
