Steady yourself with your breath. Focus your attention against the far wall. Bring your attention back to book reading distance. Can you switch your memory to your own personal, private mental space. Your thoughts are uniquely yours.
Memory is distinctive.
No two sets of memory are the same. Plans are distinctive. No 2 plans are the same. Can you bring your attention back inside yourself, leaving Hawaii, and open your eyes. The real purpose of this exercise is that there is a link between two aspects of your perception.