They do. The overall character of a Saint -- as they are in person and in battle -- are affected by the influence of their guardian constellation. An example would be the Andromeda Saint -- where the Cloth's chains that ones held the maiden down in the myths now serve the one that bear it and manipulate them to their will.
[ Shake of her head. ] Not in the manner that fortune tellers would -- that would be quite inaccurate. The Holy Father is gifted with the skill to see the stars and planets, and their paths that no human eye nor device can see. [ Bit of mischief. ] Armies do have their secret means of communication, do they not?