Distilling serves to complete a cycle of inquiry, clearing the way for a new one. (Tom)
The rhythm moves between Opening and Closing, they are contained within Convergence/Divergence. - wiki
Harvesting typically occurs as a group is approaching the end of the session or its life; if it hasn't yet occurred, it should as prelude to or part of the closing. --Sue
The quality of closing is the icing on the cake of a well-held space. -- Tom
If you haven't come into alignment by now, it may be worthwhile to fish for it with a question for the group, or voting, or to define a time or mode in which you can make another effort. -- Tom
The other bookend, useful to consult. --Tree
The Closing of any process should include plans for reviewing that process. - Tom. Closing demarcates the cycle points. --Tree
During Closing, Set Intention for what comes next. -- Tom
At the closing, have people share brief stories of their experience of the event. -- Tom

