A pagan protection emblem for the home, for even more powerful protection hung above the front door.
Tradition has it that the cross of Saint Bridget protects the house from fires and curses. The cross is associated with Bridget of Ireland (° 451 - † 525) who is venerated as one of the patron saints of Ireland.
We have the traditional Celtic 3-pointed cross and the church-reinvented 4-pointed cross.