Both views are true and valid, even though they may be opposed and contradict each other. A view of an object from afar and up close may reveal different features, but both are correct from their vantage point. Back to the point. It sets up an agenda or life plan, for the lesser self to enact. The greater self also provides protection and guidance to carry out the plan.
Communication is by intuition and telepathy.
It regulates the proper time for events to occur, at the proper moment known as Synchronicity, as it can see from afar, events and time coming together. The greater self also determines when the life journey is through. The greater will has precedence over the will of the lesser self. It knows better. The plan or its reason for being here in the first place.