The past is a memory… Remembering is a condition that arises and ceases. It has no core or substance. When you explore memories,  you stop believing in them so strongly, and you no longer live in their world, assuming all kinds of things from just remembering.  “Panna”  in this sense is being aware of the way it is, rather than holding views, opinions and emotional reactions to memories. Or applying this to people : Where is that person right now? They are just a memory that arises. In the reality of this moment, what we remember of them is a condition of the mind that arises and ceases in the present. This way of reflecting helps us break down the illusion that people are permanently what we think.

Ajahn Sumedho