An expert would teach you ways to direct your thoughts by focusing on specific images.
I can think, but not of any specific images.
"It has a specific romantic image in our culture."
Or whether a specific image fit together with a particular text or not.
I'd gotten very specific images about how they fed, and lived.
They are also defined by the recurring use of specific images.
It would not be wise to call up any specific images.
"When it's stolen it shows us, here's the Web address, and here are the specific images."
The way he worked, there was always a specific image that started him off on a song.