When life or work becomes habit, as it often does, we do things without thinking, robotically. The problem with robots is that they don't change, grow or ever get better. Every day we do thousands of little things that just aren't that important, as a result of habit or lack of thinking.
The corollary to realising that some things are not important, is that a lot of things that are important, and demand our attention and time, however if we let the small stuff in life get in the way (a late train, a grumpy client, a job title, 'the rules,' 'the way '), we lose focus on the important. Be focused on whatever is important, otherwise you are selling yourself short.
Are you doing something important, or is it just passing the time?
When the world is a blur of activity, noise and fury, sometimes, it's actually just running on the spot, full of sound and fury, signifying nothing.
Photo credit - unknown, from flickr please let me know!