Graham, this is a really great body of work. I hope you are pleased. I am just working on putting a course together and the image of the tree is part of it, Therapeutically, I take leaves and branches as thoughts and feelings. It is helpful to work there of course but also we can tackle life from trunk and roots bearing in mind Rumi's exhortation to 'return to the root of the root of the Self', consciousness and awareness. We can trim the branches and/or go for the root, consciousness and its own root, awareness.