I attend Friends Meeting (Quaker) in Philadelphia. It is an orthodox meeting (silent, no minister, un-programmed). The aim is to sit in silent alertness. It is an active waiting. It's hard. Sometimes nothing is said for the entire hour. That is amazing. Sometimes a person will stand and share a brief insight or message that arises from the silence. After this is (supposed to be) a respectful silence to ponder the meaning to oneself and to the community.
Because the meetinghouse is in Old City we get curious visitors from all over the planet. We've had to assign an Elder to make a statement about who we are and what we do to dampen down those who would use the opportunity to stand up and do group therapy (talk way too long about themselves, or rant about "some people" or political issues).
The worst offenders are members of the meeting.
From time to time it's necessary for the moderators to remind us why we gather, and how to behave with respect to others, and to ourselves.