Ansel Adams got all those incredibly detailed, realistic, take-you-there photographs by staging them.
Waiting until the light was just right, arranging his camera angle and controlling aperture, speed, film, reflections, moving things that messed with the composition--
--which is why his photographs seem so much more real than a snapshot that actually may reflect the 'reality' of a moment much more closely.
This is the telling detail thing. It's also the fabulous reality thing. And the fictional dream thing. And the grounding thing.
That's all it is: different techniques for filtering reality to make it super-real, so that it can succeed as fiction. Because there's just too much fluff in reality for it to work as a story, overall.
Or at least, that's how it seems to work to me.