This post may be silly, but it's how my brain works.
At night we run an air filter as white noise in our bedroom. As I was trying to fall asleep I heard this noise coming from the air filter. It was a low humming noise that was rhythmic in nature. All I could hear was that noise. It began to drive me batty.
I got so focused on that humming noise that I could not even fall asleep. I was so tired and just wanted to drift off to visit the sand man, but I couldn't.
As I laid there I began to think about how in life we focus on something that prohibits us from getting other things done. We stay so fixed on this little annoyance we miss out on other things.
After about 20 minutes I was able to fall asleep...but not after realizing I have to stay fixed on what matters most and set aside anything that doesn't really need or deserve my attention!