A fiction is, by definition, not true.
A sincerely held fiction is not true, but is held so tightly that it can appear (to the holder) to be a truth. Rooted in this clinging, social trouble grows.
When we see another person clinging to a sincerely held fiction, it is tricky to communicate with them about. (It is their “truth” after all.). One thing to do, though, is to get curious. How did this person come to cling to this sincerely held fiction?
Trickier still is seeing the dynamic in ourselves. We are blind to our blind spots.
So then. What do we do in order to get perspective on our own sincerely held fictions?