The Seven Branch Candelabra was commanded by G-d to be placed in the Tabernacle and then was placed in the Holy Temples.  It is displayed on the bright blue background.  In Jewish holy writ, it states that the candle represents the good deed or mitzvah while the flame represents wisdom (Torah Knowledge).  The menorah is an everlasting symbol that we can only serve the Al-mighty if we internalize the wisdom of the ages and this should lead to good deeds that are done spontaneously and wisely rather than mechanically and by rote.