This paragraph is taken from LaBerge's book "Exploring The World Of Lucid Dreaming":

"Twenty years ago I attended Tarthang Tulku’s workshop on Tibetan Buddhism at the Esalen Institute in Big Sur, California.
Rinpoche (“precious jewel”), as we called the teacher, had been forced to leave Tibet when the Chinese Communists had invaded, and had “just gotten off the boat” from India.
He therefore spoke precious little English.
The bits of his speech that weren’t already broken were frequently broken with laughter.
I had been expecting esoteric explanations of advanced theory, but what I got was something incalculably more valuable.
Rinpoche would indicate the world around us with a casual sweep of the hand and portentously announce: “This... dream!”
Then he would laugh some more and pointing at me or some other person or object, rather mysteriously it seemed, he would insist: “This dream!” followed by more laughter.
Rinpoche managed to get the idea across to us (how, I don’t really know; I wouldn’t rule out telepathy, considering how very few words were exchanged) that we were to attempt to think of all our experiences as dreams and to try to maintain unbroken continuity of consciousness between the two states of sleep and waking.
I didn’t think I was doing very well with the exercise, but on my way back to San Francisco after the weekend, I unexpectedly found my world was in some way expanded."

I find the last part rather mystifying - what does he mean by "expanded"?
This seems like it could be of interest for lucid dreamers in general, since this was pretty much the point when LaBerge started becoming seriously interested in lucid dreaming, as far as I can tell.