 The symbolism of the eagle derived from the belief that the bird was capable of staring into the sun and that Christians similarly were able to gaze unflinchingly at the revelation of the divine word.Alternatively, the eagle was believed to be the bird that flew highest in the sky and was therefore closest to heaven, and symbolised the carrying of the word of God to the four corners of the world.The eagle is the symbol used to depict John the Apostle, whose writing is said to most clearly witness the light and divinity of Christ.