Your art is so beautiful and my interpretation is:
There will be a time our mothers will be looking frail and weak from all the years of hard work and then they will need us to lend a helping hand with things.
Let us not hesitate to be of help to people around us like the little girl sellung the rose, no one can tell what she is going through, life is in phases let us do the best we can in our phade.And do not forget there is no idol like a mother,they are the helpmate of a child.