This is the culprit. A spot in a bathroom tile.
Ever since I moved into this apartment 6 years ago this spot in a faulty bathroom tile causes me to be troubled and not only when I do my house cleaning. Seeing this is as bad as seeing each dust particle flying in the air through the rays of sunshine inside my apartment. Nothing I can do about these bothersome things short of putting the blinds down or changing the tile or tell myself how lucky I am to have nothing more to fret about.
Finally today I opted for the last-mentioned after I had proceeded to clean the next room where I banged my head on an open cupboard door. Whenever I bang my head I question the thoughts I was entertaining at that particular 'bang' moment and always realize that they were thoughts which I needed to stop immediately or as soon as possible. Thoughts such as in this instance "what will people think when they see this spot?"
My sister-in-law came out of the bathroom after her first visit to this new dwelling of mine
laughing as she was telling me that she tried to clean that spot.
Now l look at it and see the sun and ask for more appropriate but soft head bangs.