There is a meditation exercise where you are supposed to look at an flame, object on the computer screen etc. and focus on the after image. The goal is to keep the after image in your mind longer and longer, until you eventually can do it indefinitely. Here is a website describing the meditation and some figures you can use to do the actual meditation www dot navaching dot com/hawkeen/micro.html

I'm thinking that maybe tweaking this meditation method to could be an alternative way, or a supplement, to learn the techniques in this tutorial. Instead of only keeping the image in your mind, try to change its color, size and rotate it, but perhaps only after getting good at keeping the image in your mind.

What do you think?