Here is an example of the memory pit and how it is active part of us, not a passive piece.

Now, I have a very good memory. Pretty close to photographic.
About the time of my mother's death, I had a long talk with my sister. My sister told me of mental/emotional manipulations that mother did to her. I remember being very angry, so angry that if my mother was still there, I may have taken a baseball bat to her (normally I save spiders).

Today, I remember the about the anger and about the conversation, but I do not remember the conversation. Its like the whole thing was pulled into a tar pit. It is gone.

Just like so many little pieces of my childhood.

The lowest emotional state is apathy.
Up from there you have to travel through anger and vengence.

And since we do not like people in anger and vengence, well, because they are often violent, we drug them back down into apathy, where the only person they will hurt is themselves.

Antidepressents are actually depressents. They put you down to the lowest emotion. Not only is the "modern" medical/psychological profession only about drugging people, but its effect is the exact opposite of what they say is their goal.