A Three Sided Blade That Pins Rather Than Cuts

The phurba, also called kila or purba, is a ritual dagger used in Tibetan Buddhist and Bon practice, distinguished from an ordinary knife by its blade, which tapers to a point along three flat sides rather than a single cutting edge, and by a handle typically carved with a deity's face or a decorative knot design rather than shaped for a practical grip. Beer's handbook of Tibetan Buddhist symbols describes the phurba's function within ritual as symbolic rather than literally cutting, used to stabilise or pin down harmful forces and obstacles at a specific point during certain tantric rites, an act understood entirely at the level of ritual meaning rather than as physical harm done to any being.

The implement is closely associated with Vajrakilaya, a wrathful tantric deity whose practice centres specifically on the phurba as its principal ritual object, and Beer's survey notes that the instrument's form and use likely draw on older, pre Buddhist ritual practice from the Tibetan plateau, absorbed into Vajrayana Buddhist ritual as the tradition established itself across the region rather than originating within Buddhism from the outset. A phurba is typically kept on a practitioner's personal shrine or altar when not in ritual use, treated as an active implement rather than as decorative art, and older or particularly finely made examples can themselves become objects of considerable devotional and material value within a lineage.