Sa'di has tried in simple language to help man towards the development in his personality of the flower-like quality: to train his personality which was made to be a flower and not a thorn. He has called his books "Gulistan", which means a flower-bed or a rose-garden, and "Bustan", a place of fragrance; and his whole life's work was to explain to man how the heart can be turned into a flower and that it is made to spread its perfume. If only one can train it and tend it, it will show the delicacy and beauty and fragrance of a flower, and that is the purpose of our life.