hmmm, Mary..not existentialism, but I see what you mean..perhaps a thing called "the eidetic reduction" by Husserl comes close..

" in phenomenology, a method by which the philosopher moves from the consciousness of individual and concrete objects to the transempirical realm of pure essences and thus achieves an intuition of the eidos (Greek: shape) of a thingi.e., of what it is..."...but it is really too abstract to apply here...(I gotta refresh...I haven't done this 'formally' for quite awhile)

in your usage, the "aha" experience is as good as anything. Suddenly, you see what your study and research and experiments and RE-experiments and RE-thinking are supposed to show you, and why it is all necessary. And maybe, if you are lucky, you will manage to figure out how to explain it clearly to those who want to dismiss it as "just another opinion".