I think there are lots of kinds of work, not all related to a particular trauma unless that's what your whole therapy is about? I got mostly education and "practice" relating to other people (my therapist) because I didn't have a good relationship with my stepmother so I didn't learn to interact with myself or others. But not relating didn't cause me trauma, losing my mother at a very young age did and my stepmother sometimes being abusive, etc. and while we addressed those too, not all the time or all in the same way? Therapy ranged around in issue and time period and means of approach.