Trust in what you think. I agree with you. Wittgenstein said much that was important but Philosophy has continued on without him in the analytic sense. He wished to highlight uses of language and that must be borne in mind here. Of course daydreams are not necessarily lucid or banal. Suspect all limiting results unless they're proven, and even then be careful. Wittgenstein also said that:
"Imponderable evidence includes subtleties of glance, of gesture, of tone. I may recognize a genuine loving look, distinguish it from a pretended one (and here there can, of course, be a 'ponderable' confirmation of my judgment). But I may be quite incapable of describing the difference. And this not because the languages I know have no words for it. For why not introduce new words?—If I were a very talented painter I might conceivably represent the genuine and the simulated glance in pictures." Phil. Investigations (Elizabeth Anscombe)
I think W. was also trying to say that we felt it but it wasn't always confirmable statistically. However shortly after W. died, Paul Ekman did some very interesting work on human facial expressions, counter to Mead's beliefs against universals of this type existing across cultures. In fact one uses such knowledge all our lives without necessarily realizing it explicitly. So W. was apparently wrong.