This is a phrase that many great photographers have more or less expressed and it's a truth that every photo enthusiast knows very well.
What happens is that, at some point, the common experiences appear in a different light, you start to notice colors, shadows, details, people expressions, all kind of things that went unnoticed before.
Our world takes on a different visual appearance when Photography becomes part of you, and it can happens that, while you get stucked into a traffic-jam, you realize for some unexpected world within noise barriers along the highway...