This is what I have learned (to understand, but unfortunately not quite to do): Holding an intention in the mind and knowing with absolute certainty it is real and done in one's life will draw this thing into manifestation. What blocks us from having the life we want is programming, self-sabotage, doubts, confusion, you name it. And the job of media, schooling, societal norms is to hammer beliefs about limitations into our minds, day after day.
So yeah, you are right, in actuality there is probably no need to build anything. But maybe the intention to build something to manifest a goal is what helps to manifest it? Like a point of focus?
What I also think: It is likely easier to make plants grow with intention, than one's own hair - because plants don't have programming filters. Whereas our subconscious sabotages everything that goes beyond the norm, and it takes more effort to bypass that.
Your understanding seems perfect.
I learned this as Law of Attraction. At a rehab clinic in South Africa, 2007.
Practicing it is not so hard. The hard part is finding the daily routine. For me it was sungazing which helped create a period every morning for visualisation. Sungazing can make us feel very powerful and there can be no doubt, this life I live now is a direct consequence of my time in London sungazing and visualising.
A game I like to play is to think about my future desires as a past event. So I make up the details and 'look back' on it fondly. This seems to work very well.
I deal with the subconscious mind in the 'waiting period' by staying firmly in the moment with no expectations about the future, remembering always that it won't happen the way I expect.
The intention to build an induction cloudbuster back in April produced a month of rain, so I never built it! Still have all the bits though and will likely build it before the year is out, regardless of the weather.
Making things happen is simple, but not easy! The only thing that stands in the way is ourselves.
And I like this:
I will try this!