This cool exercise called Image Streaming comes to us not from somebody in the self-help field, but from a photographer. When you think about it, it should be no surprise that a photographer would benefit from developing his skill of creating vivid images in his mind.
But even if you're not a photographer, you may surely benefit from the ability to create clear and bright images in your mind.
Watch this technique in the video to learn how!
I especially liked the trick of lightly rubbing the eyes to see the light spots.
If you want to read about image streaming, you can read about it with the article that first featured this video.