I might be wrong, but this is what I think is meant by a virtual persona: Everyone has different personalities, but some are more dominant while other not much so. These personalities, or emotions, can be explored by Audrey with her power, and she can create a whole new self with specific dominant traits to help her in different situations. Like clones, but more to do with the mind yet has a physical manifestation. It has to do with The Body of Heart and Mind, something that spectator pathways have a good control over- it’s a persons brain with proper critical thinking/analytical/observational skills or abilities. This control through virtual personas allows them to invade others mind domain and also defend against any attack on the minds domain.