The World Health Organization defines mental health as "a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community”. It was previously stated that there was no one "official" definition of mental health. Cultural differences, subjective assessments, and competing professional theories all affect how "mental health" is defined.

http://www.who.int/whr/2001/chapter1/en/index.html

Oregon DHS defines recovery as "a process of healing and transformation for a person to achieve full human potential and personhood in leading a meaningful life in communities of his or her choice.
(Adapted from SAMHSA, 2005)"

http://www.oregon.gov/DHS/addiction/recovery/amh-resilience-recovery-polstate.pdf