A Dagger in the mouth of a skull symbolises action, being ready to face anything without fear. If instead the dagger is depicted with a snake or stuck in a skull It symbolises death. The dagger can also mean revenge, especially if it is surrounded by drops of blood; Astigite to avenge his sister Aspalide, as the Greek myth of Melyteus tells, he disguised himself and hid in his clothes a dagger with which he killed the tyrant who led his sister to death.