Let's define the following interactions with ones dreamspace. Here, I will borrow some terminology popularized by Robert Monroe. Robert Waggoner calls its something different. I'm not going to run downstairs to get the book right now, but it's the same thing. "Supermind".
Let's assume we are embedded in a lucid dream. Some would argue we have the following manifestations of our "mind", each with a different role.
Conscious Mind
It's what it sounds like. It is the re-activated logical awareness and processes normally associated with wakefulness.
Subconscious Mind
Again, exactly what it sounds like. This element of our mind seems to drive many of the microelements of the dream. Let's say we walk up to our table and expect it to be brown wood, and it's stainless steel. This is probably driven by the SC. Or let's say we find an attractive DC and we make a move, only to get rebuffed. This is almost certainly driven by the SC. So in short, we are talking about micro details of the dreamspace.
Supermind
The supermind is the "man behind the curtain". It controls the macro aspects of the dream. The supermind is timeless, in any sense of that term. The supermind is privy to a great deal of information which we have no conscious or linear space/time connection to. The supermind is at work during some of the actions that Waggoner discusses and suggests. For example, stating a request out loud to your dreamspace and getting a response. This is NOT asking a DC a question. That is different. The most intriquiging example of how to leverage the supermind takes me back to EWOLD, where Keelin (if I recall) was floating in space and asked to see the meaning of the universe (or something similar). The response was provocative indeed.
Now, let's define several ways to interact with our dreamspace so we are all using the same terminology:
Level 1 Interaction
Here, we use the conscious mind to interact with our dreamspace in a very literal sense. An example of this would be trying to open a walnut with a nutcracker.
Level 2 Interaction
Here, we use the elements of the subconscious to alter the reality of our dreamspace to accomplish a goal. The method used is otherwise impossible in waking reality, but still under our conceptual conscious control. Stated otherwise, it is "a meeting of the conscious and subconscious minds". Extending our example, we might hold the walnut in our hand, imagine a melting effect and have the shell melt off, leaving the edible part in tact.
Level 3 Interaction
Here, we have something of a meeting of the minds. A combined interaction of the conscious, subconscious and superminds. How would we do this? Maybe we would state out loud to our dreamspace "show me a special way to dissolve the shell of this walnut, so I can get to the edible portion". Maybe your dreamspace responds by radiating a briliant white light and disolving the shell. This is an example of a level 3 interaction.
Hopefully, it is clear that each of these interactions are progressively deeper. Each, I would conjecture, have a monotically increasing affect of the mental focus or concentration on that region of ones dreamspace.
(bold/red, just to insure that the original point here, was not lost in the otherwise unoriginal and verbose exposition).
To be continued in due course.