The Spiritual Daggers of the High Himalayas : Phurba and Kartrika .

[ruel]

Radu:
I am striving to find the ceremonial exact use of this daggers and to what percentage were they spiritual, symbolic or utilitarian.

The original of the purbha in Sanskrit originally referred to tent pegs, and there is no evidence of them being used as weapons in India. In Tibet they're used in exorcism, where a doll containing an evil spirit is stabbed by a purbha to cure illness or possession.

I could cite sources, but why? That would require more work than I care to do.