On Sun, Nov 15, 2015 at 03:33:44PM +0000, xxxxxx@comcast.net wrote:
> "Lucid dreaming involves the awareness of the dreamer that
> s/he is dreaming, and can lead to control over the dream, with
> training and practice."

The sentence structure is a bit clumsy, but unambiguous and sensible.

> "Lucid dreaming involves the awareness of the dreamer that s/he is
> dreaming, and can learn to have control over the dream, with
> training and a lot of practice."

This change makes no sense.  The subject of the sentence is "lucid
dreaming".  The changed sentence says that lucid dreaming can learn to
have control over the dream.

> In the section of "What Is Dream Walking?" four types are identified the
> first sentence of "What Can Dream Walkers Do?"
>
> "There are several types of dreamwalkers, divided by their capability to
> perceive or interact with dreams."
>
> I expected the "several types" to expand the four core types which I
> do not feel occurred, of course I may have missed them.

Yes, that is slightly ambiguous.

The word "type" doesn't quite fit either: they're more like degrees of
capability, with higher degrees subsuming all of the abilities of any
lower degrees.

- Tim