It's incredible hard to explain the technique for two most reasons:

- First, you're half asleep. When you actually do it, you later recall the dream and tend to forget exactly what you felt in the moments before :p
- It's such a deep experience (feeling your body, not feeling your body, hallucinating, etc etc) that is very hard to generally describe as something linear.

The first thing that you'll star to notice is your body going heavier and numb. You sense shifts on awareness like someone is turning off some switch in your head. Your brain starts to wander around like you would be zapping in tv. Images and sounds that make no sense come to your mind but you're just ignoring them. It's like your in some sort of stupor, like when wake up from anesthesia. You are still awake, but you're groggy and with slow thinking. At this point, the experience varies greatly. Sometimes you feel a violent transition into REM, like your whole body seems to be contracting (when it actually isn't) and you sense yourself (not your body, but yourself) lifting and showing up in either your room, or in another scenario. Sometimes it's a very quick and smooth transition: you're lying there, and then sense yourself disconnecting from your body and more present on the images that are showing up than at the real world. And you just appear there.

Hope this helped. It's really hard to explain because I never had 2 WILDS that resembled one to another. Oh, and don't move! You'll know when the dream is starting is just something that you feel without a doubt. Many people have false awakenings though because they just think that shift in consciousness was merely an event previous to the REM, when it was actually a smooth transition