“In effect, magic is used to fuse the two of them together by linking their souls. Its purpose is to protect the life of an important person AKA the ward - in this case, Darius - by making sure that the guardian - Orion - will always place themselves between him and danger. So, in effect, if Darius were to come under attack, Orion would feel it and be duty bound to come to his aid. It was said that guardians could even feel the pain of their wards if they were injured and would give every last drop of their magic to protect and heal them.”
