From Me to We — the shift in behavior I see in powerful communities
Fabian Pfortmüller

I think the ideas of and importance of creating psychological safety is what the key factor is here. Every person who joins a group ( and the entire group meeting for the first time) has fear and caution as they explore, engage with the group. Overtime if psychological safety is established then trust can emerge and bonding can ensue.Negotiating-Nonnegotiable-Resolve-Emotionally-Conflicts has a great model that shows the underlying dynamics of the ways we fight for our identities and how if we create safety we can have connection.