I'll stick to it for the sake of my relatives. Just some parts of it I can't seem to get my head around. The putting thoughts on things is a bit much for me
My joking aside. I understand the theory behind "imagining problems floating away". The idea I believe is to bring symbolic closure or divert a pattern of thought.
The problem is, if you can't suspend disbelief, then I doubt this will work. I consider myself quite a logical person, and quite a rational person. Other people who know me seem to agree. Now, I'm no Mr. Spok with mad Vulcan skills, but I have tried to cultivate this rationality in myself.
So from my point of view, I approach things in an empirical way. I like to think scientifically about things. Basically I'm a total nerd, but it's a useful way to think.
I like repairing things, and anything broken I will try to figure out how it works and then use that knowledge to hopefully fix it. So my brain is filled with logic statements such as "If X then Y, if Y then P, if not P then check cause of state of X". The more I've thought in these terms the better I feel I'm able to understand the world around me and see if a premise is logically valid.
The problem I have is (in a kind of pseudo code) is "If problem == true, then imagine leaf, imagine stream, put problem on imaginary leaf, put imaginary leaf on imaginary stream, if imaginary NOT true, then solution == false". I don't believe in the unreal, so being rational my mind can't accept the premise that a problem is solved by imagining it floating away.
This may also be your "problem" you know that a problem isn't solved by playing make-believe. So perhaps they need to fine tune this therapy and apply it in more logical terms. I'm not quite sure how, but maybe if there was something they could help you physically do that actually works towards resolving a problem?
I guess it depends on what you struggle with as to how this could take shape.
Anyway that's my theory :-)