Most psychological support centers around talking about problems with an aim of increasing insight or reframing.
The problem is that with trauma, it often effects in a way that our verbalizing mind doesn’t have access to. And in many cases, we may not even be aware of what traumatized us in the first place.
Bottom-up approaches - which include feeling body sensations, using the breath, grounding into the present - and other body-based awareness tools tend to be more successful in helping us access trauma for processing and integration so we can move on from our past and be here, safe in the present.
Both top-down (talking) and bottom-up (body-based) approaches have their place and a therapist should be aware of why they are choosing one or the other at any given time in the process.