It sounds interesting, but it isn't like a persona inside the mask, that would have a human body when the mask is used. Each masks has certain attributes and things that will be pushed onto the wearer when it is being worn, seamlessly sliding into the personality of whoever is wearing the mask. Like they might have a craving for tuna sandwiches when the have the mask on. It's still them at their core, just a few things change here and there. Does this make sense?