For those interested, there were a number of resources I drew on for this piece, but 'The Happiness Trap' by Russ Harris
was important as was an academic paper called 'Touching the Void' by Paris Williams (Ph.D) which I attach below as a pdf. file
Touching the Void - Working with Spiritual and Existential Crisis Working with Spiritual Crisis.pdf Adobe Acrobat document [388.9 KB]