Not sure I'm understanding you either. If you're asking if events can be buried - then I'd say yes. My T explained it to me as the psyche's way of protecting us from things that theaten us. But I didn't take it as a conscious decision that this happened - sort of like a built in defense mechanism the brain has. I didn't take her to mean that we consciously have the ability to make the decision to bury something. At least I can't. Don't know about others. I didn't understand her to mean that burying is something we have control over - just as we have no control over when they might resurface!!

She said they can come back at any time. In dreams - at the grocery store - in my case a public restroom. Said something might trigger the emotional experience of the event and there it is... ready or not!
Don't know if that's anywhere near what you mean or not. Hope it helped. Good luck!!