EMDR (Eye Movement Desensitization and Reprocessing) tends to sound more intimidating than it is. The name alone makes it sound clinical and strange, so it's worth explaining plainly what happens in a session.
What it's for
EMDR is a well-researched approach for helping the brain fully process a memory that's gotten "stuck": a traumatic experience the mind hasn't been able to file away the way it does with most memories, so it keeps resurfacing with the same emotional intensity as when it happened.
What actually happens
You don't have to describe the traumatic event in graphic detail. You bring the memory to mind briefly while following a simple bilateral pattern (typically guided eye movements, though tapping or sound can work too) that appears to help the brain reprocess the memory the way it naturally does during REM sleep.
Most clients describe it as unexpectedly gentle. You stay present and in control the entire time, and you can pause whenever you need to. Sessions often end with the memory still being true — it happened — but noticeably less charged, less able to hijack your body and emotions the way it used to.
EMDR isn't the right fit for every situation, and your counselor will help you figure out whether it makes sense for what you're carrying. But for many people who've felt stuck no matter how much they've talked about a memory, it's often the piece that was missing.