Begin to concentrate on the space in front of your closed eyelids. Imagine before you a transparent screen as though you were at the movie theatre. The screen is as high and as wide as the eyes can see. Concentrate on this mind screen and become aware of any phenomena that manifests within it; colors, patterns and light. Whatever you see is the manifesting state of your mind. Continue your awareness of this space but do not become involved, practice detached awareness only. If any subtle images make themselves known, simply notice them without directing the images. If thoughts occur let them come and go but continue watching the dark space, continue this with detached awareness.