is a picture with a hidden meaning, the meaning is “cast into” or “inserted in” the visible device. Thus, a balance is an emblem of justice, white of purity, a sceptre of sovereignty. (Greek, en-ballo, which gives the Greek emblema.) (See Apostles, Patron Saints.)
Some of the most common and simple emblems of the Christian Church are -
A chalice. The eucharist. The circle inscribed in an equilateral triangle. To denote the co-equality and co-eternity of the Trinity. A cross. The Christian's life and conflict; the death of Christ for man's redemption.
A crown. The reward of the perseverance of the saints. A dove. The Holy Ghost.
A hand from the clouds. To denote God the Father. A lamb, fish, pelican, etc., etc. The Lord Jesus Christ. A phoenix. The resurrection.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894