Answer: The gathering of friends is a part of the day when we are tuning to receiving a new portion of the Upper Light because these meetings precede the lessons and workshops, i.e,. our upcoming spiritual actions.
To do this, we must get ready, unite, and remind each other about our goal that it is achieved in unity, that it is the mutual support that is our freewill, and this is our only free action; all the rest does not depend on us. The gathering of friends should remind us about this.
From the Lesson on the Topic: Preparation for the Convention, 9/9/14