https://www.mindtools.com/pages/article/RoleofAFacilitator.htm
The definition of facilitate is “to make easy” or “ease a process.” What a facilitator does is plan, guide and manage a group event to ensure that the group’s objectives are met effectively, with clear thinking, good participation and full buy-in from everyone who is involved.
To facilitate effectively, you must be objective. This doesn’t mean you have to come from outside the organization or team, though. It simply means that, for the purposes of this group process, you will take a neutral stance. You step back from the detailed content and from your own personal views, and focus purely on the group process. (The “group process” is the approach used to manage discussions, get the best from all members, and bring the event through to a successful conclusion. How you design this depends on many factors, and we’ll explore this in a little more detail later in the article. The secret of great facilitation is a group process that flows – and with it will flow the group’s ideas, solutions, and decisions too.)
Your key responsibility as a facilitator is to create this group process and an environment in which it can flourish, and so help the group reach a successful decision, solution or conclusion.