Difference between dissociation and detachment?

I dissociate often and I know that word is kinda dirty in the mental health world. But truthfully, it feels good. I become semi catatonic, relax into my body and feel not separate but settled in the here and now but in a dreamlike state. I often do this when I’m extremely fatigued or in the thick of what should be a stressful situation (e.g. sometimes when working a very busy shift in hospitality I can bliss out and just do the work on autopilot after establishing efficient processes)

In other contexts like sitting on a train after a long hike, I am just so happy to sit and stare at the ground lol. In dance classes, inbetween sets of practice, I zone out and stare at the floor and I don’t realise until I snap out of it or someone asks me if I’m okay. I feel okay, almost like I’m further encoding the dance steps or something. Other people find these (very regular dissociative episodes) kinda distressing/antisocial or assume I am sad or something. Maybe I am sad? But it doesn’t feel despairing, just neutral… Many people have commented that I have depression and several professionals have diagnosed me with it too and I recognise that to be true at times but I think I’m mostly an optimistic person.

Trying to work out what it is that is happening here? Or if I should pay it less attention and accept it as a quirk