Ideas are floating like fish. Desire for an idea is like a bait on a hook. If you desire an idea, it pulls and it makes a kind of a bait. Ideas will come swimming up. And you don't know them until they enter the conscious mind. And then bingo! There it is! You know it instantly. And then more come in. If you go fishing for ideas, a lot of ideas will just pop in. And one of them will make you fall in love.
A poet could write volumes about diners, because they're so beautiful. They're brightly lit, with chrome and booths and Naugahyde and great waitresses. Now, it might not be so great in the health department, but I think diner food is really worth experiencing periodically.
When you get an idea, so many things come in that one moment. You could write the sound of that idea, or the sound of the room it's in. You could write the clothes the character is wearing, what they're saying, how they move, what they look like. Instead of making up, you're actually catching an idea, for a story, characters, place, and mood - all the stuff that comes. When you put a sound to something and it's wrong, it's so obvious. When it's right, the whole is greater than the sum of the parts. That's a magical thing that can happen in cinema.
When you get an idea, so many things come in that one moment. You could write the sound of that idea, or the sound of the room it's in. You could write the clothes the character is wearing, what they're saying, how they move, what they look like. Instead of making up, you're actually catching an idea, for a story, characters, place, and mood - all the stuff that comes.