Angle, intent, and outlook all sway our perspective. Even when using the best of our senses, there are times when our emotions interfere with our rationale. Keeping a cool head and paying attention to our inner voice might be the extra sense in determining perspective.
This photo over Dallas shows a whole other side of a city that I had never seen before (I was lucky to capture it.). I discovered an amazing and fresh look at a city I thought that I knew well, but now see it clearer and with fresh eyes.
Try, just for today, looking at something that you do or look at everyday, and apply this philosophy. See if you appreciate what you look at, a little more.