Empathy is the ability to understand and share the feelings of another. 

I was struggling to find my grandson's smile on a particularly hard day for him. I gave him a mood ring.  The ring had a brown stone in it and he was fascinated when I told him it changed colour with his mood.  Sure enough, it turned from brown to yellow.  "What does yellow mean Granny?"  "Damon it means you are mellow-yellow and feeling fine!"

He liked that and a small smile appeared.  But then, it turned to green!  "What does green mean Granny?"  "It means you are happy Damon"

"Would you like to wear it Granny and we can both be happy?"  So much empathy from his young soul. And with that our day was complete. Green is the colour of tranquility and tranquility was what he needed on this day.