Daydreaming is the act of thinking bout something else, while trying to focus on something else. This is why its day dreaming.
Unconsciousness is when you can't sense much. Sarah is sensing something, her dinner.
Executive function is the act of doing cognitive abilities that control most of what we do in day-to-day life.
Selective abstraction is when you focus on the main part while ignoring the smaller part, sarah is focusing on the small part and dishing is the biggest part which she isnt focusing in.
It means true friends are hard to find but when you do find them hold them close because they're worth so much. Fake friends are literally everywhere around you and mean nothing/worth nothing.