Therapy: in nature or an office?

In the last week the notion of a passport had come to me, inexplicably, as far as I remember.  But I did notice, because I'm more somatically aware these days, that I had felt a pang.  They are often, subtle, but I get them a lot.  They are usually in my chest, a kind of hidden startle-reflex the way a newborn jumps alarmingly at any noise before its system learns that noises aren't generally dangerous. 

Usually they indicate fear, but I am But if you start to normalise these physical responses to fear you may end up living with an unhealthily high baseline level of cortisol or live with or trying to shrink your life to avoid such triggers. 

That stone release ritual had given me an idea.  I didn't think that, for example, tying up a bunch of sticks and floating them down the river or dropping a stone off the bridge while visualising mum's passport was necessarily going to do the trick. A symbolic ritual, perhaps, but I thought it was going to need more than that to move these triggers. Were there any elements of it that might accord with scientifically proven ideas of making trauma triggers a thing of the past?  If the passport was an example of a problematic trigger could I use that to test it?  

Many indigenous practices have been shown to be effective at achieving their purpose. In the West they tend to be dismissed out of hand as "unscientific" but if an impartial observer were shown two different practices (say an indigenous practice to move someone out of trauma, or western EMDR therapy) and both worked as effectively as the other then the impartial observer could only say that two different methods led to the same result.

 Especially with the scientific data emerging in recent decades that community and nature benefit our health, why do we continue to give automatic credence to the idea that sitting in an office or online with a paid stranger who threatens to lock us up if what we say worries them, is more helpful than a therapy set in community and in nature? It's because we have put all our faith in the tag "professional".