Another visualization from my friend's therapist, which I've fleshed out a bit. This one pertains to situations in which you choose to interact with your abuser (my friend has chosen NC in order to give herself a break, but knows that, due to current affairs in her family, she will be interacting with her mother in the near future).
Imagine that your Nparent is running a video projector (I picture it as the old-timey silent-picture type). S/he plays movie after movie after movie over and over and over again, without cease. It's a 24/7 picture show. The projector is casting its images onto you.
Tou reach for a screen and set it up between yourself and your parent. Now the images can no longer be projected onto you. Instead, they are cast onto the screen. The images on the screen have nothing to do with you. They are old movies, being shown again and again by the projectionist.
While reflecting on this today, I thought, you may have been given complementary front-row tickets, but you don't have to go to the show if you don't want to!
vitascope illustration from Who's Who of Victorian Cinema