The term 'art-of-living' refers to capabilities for leading a good life. In the expression art of living the word art refers to skill and living  to a manner of life, the capability of leading a good life. A life artist   is someone who makes the most of it, given external conditions for existence. Since there are different views on the good life there is also difference in what skills are actually required for living well. In other words- Art-of-living is  the capability to live up to such principles, the capability to take pleasure from life.