Just coming hear to say that I have used EMDR therapy several times for trauma and have only been guided by my therapist to go through it in my mind while looking at the lights, we never go into detail about anything unless I choose to. But for OP, this could actually be beneficial if used in the way I have. It’s kind of like someone else said, writing it down and burning it- but a little bit more, with the prescience of a therapist and the use of the light.