I really like your guide, Adraw. I like the focus on Memory and Inertia.

I think many people have a hard time creating complex and involving visualizations. Instead of trying to invent a visualization, why not just use a memory? Before bed, rehearse your imaginary scene. Spend a minute touching your desk (your example), or whatever you decide to do. Then, when you are lying in bed half asleep, you only need to remember your experience from earlier in the night.

Inertia is a good way to describe how to let go of the waking world, and let the dream take over. You nudge your mind in the right direction, and then let it take over. You can't force it. Just give it a push, and let it roll downhill into a dream. If it slows down, give it another little push.