What we see or perceive is defined by its background

  The object of perception is immanently tied to its background—to the nexus of meaningful relations among objects within the world. 

Because the object is inextricably within the world of meaningful relations, each object reflects the other (much in the style of Leibniz's monads). Through involvement in the world – being-in-the-world – the perceiver tacitly experiences all the perspectives upon that object coming from all the surrounding things of its environment, as well as the potential perspectives that that object has upon the beings around it.