Awareness pertains to extended consciousness, it isn't simply an ability to walk around and recognize random objects and people here and there. The child with autism may have core consciousness (I refer to these terms, with respect to Dr. Damasio's research and theories), they may even intellecutually realize their existence, but it's not fully realized. Extended consciousness is not necessarily directly correlated with intelligence, Damasio (from what I've read so far) mentions internal verbalization as being integral for extended consciousness, that is being able to carry out a stream of consciousness mode, which is natural for most people. It's not like one is playing chess at one time, and then the next thing that sparks realization is that one is in the classroom attending to the professor's lecture. People with normal consciousness are accountable to what's going on, autistic individuals don't since they have trouble integrating time mattered events because of a lack
of ongoing consciousness so that they can eventually develop a sense of self, or at least take up a time line of what is their life.
It is almost as if one were to get thorough half of their day, then at around, let's say 3 o'clock, they develop some amnesic symptoms,
or if their consciousness suddenly "shut off". How would this individual go about the rest of their day?
They would essentially feel lost, amnesic patients seek to regain their timeline, it is that important, thus even if they had lost this consciousness once, they have the inherent ability to redevelop it. However, even this requires a constant sense of what they're doing, one is seeking to reestablish "themselves." A constant consciousness of this fact and the ability to keep it in mind. Not much matters to an autistic mind, it is as if they never learn anything, they don't attain that level of flow in moving forward, and it seems that they can sense all of this, but aren't able to keep a level of consciousness to establish their lives. It may be that the child has a sense of this, in that everyone seems to be going somewhere. Thus they need a level of constancy to deal with the anxiety of what appears to be regression, because they can't take up a forward perspective of things. Reality becomes familiarity for the adequately consciousn mind, everything is novel for the autistic mind and everything is still going very fast. To them, their mind is what needs to be understood, that's perhaps the core consciousness, they can never "know" that they exist in a "real" world. A normal mind, understands this reality, that is if one were to experience nature in their own style (e.g hiking, camping, on the chair in the back porch with a view to a forested area) you wouldn't need any music, any emotion which spurs excitement, and any God to make the trees come alive, nothing else is needed.