Back to the Crabbe family. With my newfound magical control and knowledge of the existence of summoning magic, I got to work, turns out that the Patronus being the only spell known that is impossible to cast silently makes sense now, the incantation is the summons that is cast across the world. Exchanging the Patronum aspect of this yielded no results and I quickly found out why. When saying the incantation, the translation can be read as "I expect" or "I await" and as such you are inviting a spirit guardian to come to help you at their leisure, most of the time this happens to be your spirit guardian. the positive emotional aspect of this is that the spirit guardian cannot present itself when the person they are guarding is under stress so to circumvent this you have to focus solely on positive emotions and lock down stress which opens the way for the spirit guardian to present itself on this plane, all the while they funnel your emotions through so they can be felt creating a feedback loop where your own emotions keep you happy and unaffected. Like in most magic, summoning magic follows the rules of willpower, change the request of expecto to the demand of ego postul and pump enough sheer willpower into the magic and lo and behold you've summoned a creature not of this earth and bent it to your will