Once there was a wise teacher who took all his students for coffee. They were surprised that all the cups on the table were different. They all took a cup and started drinking their coffee,
each looking at the cups of others. The teacher let them do that for a while and then said:
"Do you notice your behaviour? You all are looking at each other´s coffee cup and I can see some of you with the chipped ones are even envious of the finer cups of others. Is this not so?"
The students agreed, amused of their own behavior.
"You may have wondered why you all had different cups, but I put them here on purpose. You see - they represent life itself. Life is like that coffee - and the cups are like the physical circumstances of your life. You all got the same thing in your cups - coffee. And yet you cannot truly enjoy it in your envy of another´s cup. It´s just the same with life. You forget to enjoy your own life when you concentrate on envying the circumstances of someone else´s life.
So now, close your eyes, and taste your own coffee. Really taste it. And tell me - did it matter from which cup it came from?"