The arms reflect the fact that Tara, the seat of the High King of Ireland, was in Mide. This symbolism is derived from iconography rather than classical heraldry; mediaeval royal seals portrayed a majesty on the obverse and the arms of the sovereign on the reverse. The sceptre, here shown to have five oval nodules, represented power, and the outstretched right hand justice; both of these were royal prerogatives. The old province of Meath is nearly coextensive with the present-day Diocese of Meath. The arms of Meath were apparently used at one time as the arms of Ireland: a majesty on a sable (black) background, the provincial arms being displayed on an azure (blue) field azure.