I haven't found gratitude necessary, Clinton, but I'm always grateful; so, maybe it does. I find that gratitude is an essential quality in living a successful life. It keeps us plugged into the source of all good things. So maybe....But, I see the process of making clouds disappear as a natural ability of our brain, much like imagining; so I doubt it. What gets in the way of success is thinking, thought producing, because making clouds disappear is a function of our creative, intuitive mind, and thinking definitely gets in the way. You see, the use of our thinking brain and our creative brain are functions that alternate functions. They do not work simultaneously. So, when one is working, the other does not.
I've also not found anyone else teaching how to do this; so thanks for that info too.
PS. Did you get my email offering to get together in Tucson? I rarely check Hubpages anymore; so contact me as you did before if you're interested.