Sagittarius represents Jesus as the Archer and the Eagle that fishes. The three decan constellations show that Jesus shoots arrows of the Word hit people in the heart. Where there are fish that experience the Word of  God, there is also the serpent to steal the Word. This truth is represented by the third decan constellation – Draco – the serpent. 

Sagittarius represents the tribe of Asher. Prophetically, the “bread of Asher is rich” (Gen 49: 20) and this is a clear picture of the salvation story- 

The archer shoots the arrow and pierces the hearts of men (fish). The dragon attempts to steal the Word but the Word becomes the rich bread of life for the fish.