Welcome, Jack!
I'd put in a vote for daily involvement in this or something like it, while you're exploring it otherwise. I so agree that much of this is present in most religions and spiritual teachings, perhaps just somewhat different words.
I'd suggest for example, some relatively easily observable interactive intention, like something positive and relating to the people you see daily--just to watch the response, or something having to do with your health or other habits-- just to watch the effect on your own self discipline.
Perhaps work out a discipline for actually using Intention Manifestation (this board and this forum is full of different peoples' experiences doing just that part of it), and then jump in! (You can phrase your intention and put it on the sticky, for example, if you like

)
At the same time, you can analyze, conceptualize, intellectualize what people are saying is going on with this. I personally think it's real important to do that too.
Then you've got it from at least two perspecives--your own experience and the theoretical background that has developed. You might find that very interesting.
I do see some folks, very sincerely trying to analyze this to the point of "truth" vs. "untruth", without the benefit of their own open minded experience. That to me seems an incomplete use of time, unless that is truly all they want to do. Since we're just talking about seeing if a certain mental/emotional/spiritual exercise may be helpful in doing something we want to do anyway, this seems pretty much low risk, to me anyway.
Tell us how it goes and what you're learning! (Please

!)
All best,
Ati