Strange dream.
I was in some sort of Asian monastery and practicing imposition against a wall with several pictures. One was a 30s style poster in black-white red but no idea what was on it. Also there was some sort of spherical stone ornament stickung out of the greyish wall as an anchor point for orientation. I was told to visualite a red dot like from a laser pointer and surprisingly it worked, fully realistic. Then I tried a blue dot and it went even better. I tried moving it across the wall and it gave some sound, the pitch indicating the point's height like from some biofeedback device. After a bit of trial and error I got this. Strangely I failed to visualite yellow or green dots so I played with expanding the size of the blue dot. First to the size of the wall ornament which was about as big as a grapefruit, then as big as the entire wall and room. It took more and more effort like lifting soemthing heavy and at some point everything turned to bright bright blue light and I was thrown out of the dream. Still was happy and it took me a bit to realize it was only a dream and I didn't really have this skill. Damn.