perceptions...

2 women were chatting by the window pane.The owner of the house was commenting on a lady drying clothes on a clothesline in the adjoining lawn. She was being critical, commenting that the clothes appeared so soiled and dirty even after the washing.

It was then that her friend mentioned that the dirt was on her window-pane , not on the clothes.

very often, being aware of the lenses through which we observe is the key.