I few more things I've learned -- Dream Resistance to Suggestion, and also Dream Incorporation of Ongoing Suggestion.

I fell asleep with the Tape running (I call the program a Tape simply from out of customary usage, from when there used to be such a thing as tape recorders) and the material was actually incorporated into Dream Content. This would be useful to anybody who wants to become Lucid, since the Program Voice could be saying something along the lines of "You are Lucid Dreaming, now. This is just a dream, you know". This might not be a sufficient clue for many of us, but it would certainly be on the par with little blinking lights or vibrations. I noticed that the Tape Voice bleeds into dreaming just when the volume of the voice reaches a point where it would have to be incorporated into dream content, or it would be almost too loud to sleep through. It takes some getting used to... one has to build up to that volume slowly or one could not possibly go to sleep with it like that.

In my own instance, I was not running a Lucid Dream Suggestion program. it was a program more on the spiritual side of things. And I found some resistance to it. The Dream Characters were grumbling about it. The Dream Content had some of the Dream Characters quoting from my Hypnotic Suggestion Program. I found myself discussing Hpnosis Theory with them. Then there was one dream character who really had a problem with the Program, and I grew a bit impatient with him until I insisted he explain exactly what his problem with it was. But the Dream was playing a bit of a joke on me by that time, because the Dream Character reached over to a microphone and began saying "Let me have your complete attention, please.." from right out of the Suggestion Program that was still running at the time. And I woke up.