Imagine that you are a group of people of any sort.

You could be a spiritual group, a family, friends, a business or a society.
Shadows that appear will be the dissonance symptoms.
These shadows show the weaknesses in your team for instance.
You might have targeted nasty criticism, gossip, subtle attacks to sabotage, secrecy, ideas stealing, etc.
To create the highest level of coherence with any group, you must identify these shadow zones, unveil them, own them and master them.
Each time a shadow appears, it signals a weakness in your group.