"Mm, I was hoping you could tell me. The pivot, as we call it, is typically a highly emotional time for the individual. We might call it "trauma,’ but it can be a time of extreme happiness or sorrow or both. Adrenaline rushes through the body and the memory is imprinted into the amygdala, which is part of the limbic system. The amygdala holds the emotional significance of the event, including the intensity and impulse of emotion. The strength of the spell may have sought that out, because it was also the most active part during the process of chasing down the Death Eaters. But it’s what the mind has recognized as a turning point of sorts."