The concept of GNH has often been explained by its four pillars: good governance, sustainable socio-economic development, cultural preservation, and environmental conservation. Lately the four pillars have been further classified into nine domains in order to create widespread understanding of GNH and to reflect the holistic range of GNH values. The nine domains are: psychological wellbeing, health, education, time use, cultural diversity and resilience, good governance, community vitality, ecological diversity and resilience, and living standards. The domains represents each of the components of wellbeing of the Bhutanese people, and the term wellbeing here refers to fulfilling conditions of a "good life" as per the values and principles laid down by the concept of Gross National Happiness.