A space in Confluence® is a container where a team creates, stores, and collaborates on work related to a team, shared project, or initiative. Spaces are a way of organizing content into meaningful categories. A space is a collaborative workspace or knowledge base for a team. Confluence® can contain public and private spaces.
Personal space is an area in Confluence® site that is automatically created for every user to store everything a user is working on individually, to keep to-do lists, and to polish any content before moving it into another shared space. On another hand, public spaces allow for collaboration of multiple users and teams on a content.
Enterprise Bridge can migrate both private and public spaces as well as restricted spaces, as far as a user who runs a migration has enough permissions to access the content.