Virtual selves

   seeing illusion

How does our brain have a sense of self? There is of course evidence that brain damage such as a stroke can leave a person not knowing they have a left hand for example. Alternatively if a limb is lost then the brain still has a sense of it
Virtual selves.  Mind blowing!
We are equipped to make sense of incoming information via the senses - but what about change blindness??
Baffling!