This quote makes me think of the quote "Practice random acts of kindness and senseless acts of beauty". So the relative beauty or ugliness of a person's day can be intimately affected by those a person encounters. An act of kindness by another can bring out the beauty in any day, sometimes in spite of whatever else has happened. If you've ever heard someone say "That made my whole day", that fits pretty well with this sentiment.
This quote reminds me of my mother whom I lost in two years ago. It seemed it was her mission in life to always try and leave the days of those she met a little brighter. It was not unusual for her to stop a woman in the grocery store and comment on her lovely blouse or earrings, or some such thing. A service man or woman in uniform was always due a ”Thank you, and God bless you.” Many times I saw their faces brighten at this simplest of gestures.
I think that anytime there is a reflection quality to a question, there can be no "given" answer. I believe that you will have to go back and ask yourself what you feel about this quote and how you feel it is meaningful. For instance, think about a day in your own life when the kindness of another person has touched it and how had that day changed because of it. Another instance might be when you can reflect on how bad things were until someone helped you. The change in this proves Elliston's quote to be valid. Indeed, it is commonplace to suggest it and very obvious. Yet, the fact that it needs to be said and upon which reflection is being asked proves to a great extent that the quote is highly relevant because more people need to experience it and experience what it is like to give it to another.
This seems like a pretty obvious statement to me -- one that does not really deserve to be as famous as it is.
Of course a day can be beautiful when kindness touches it. When people are kind to us, it makes any day more pleasant and enjoyable. While the statement is true, it does not seem to me as if it is particularly insightful. We all know that we are happier when people are kind to us.
So, I have no quarrel with the substance of the quote. But my reflection is that it seems too obvious to deserve to be widely quoted.
The saying goes hand in hand with the concept of passing along a smile to someone. One small act of kindness can make a big difference for others. An ordinary day may just be a place in which one goes to work, sits in the office, and performs ones duties. However, a co-worker comes along who notices that the coffee cup on your desk is empty and you are up to your eyes in paperwork. The person smiles and refills the cup. No questions asked, no reward expected. The person has performed one little act of kindness but suddenly the day seems brighter and the sun is shining inward. One little act of kindness has made a significant difference.
Passing on a little bit of kindness towards another person can make their day much better for him.