A master spirit is a spirit who is a leader amongst your spirit family. They are the peacekeepers, the organizers, the leaders, the guides, and will be your second-in-command. They do not replace you as the leader of your spirit family, they are your direct confidantes who will help you to work with your spirits, communicate with your spirits, organize efforts, organize tasks, understand the connections with how your spirits can work with spells you have, and overall provide a more cohesive atmosphere and environment for you & your spirit family.