I am always amused whenever my daughter have her sights zoomed into her favourite things when we go out - she would shout out in glee when she sees a playground when we are on a taxi or bus. Everything else around is insignificant.
It is true when we say we see what we want to see and that our sense of reality is certainly connected to our perspective of life. A three year old doesn't know anything else except playgrounds, toys and cartoons and to a three year old, this is what life is all about.
To read more:
http://www.platinumlightworker.com/weblog/perspectives_of_reality.html