Self-sufficiency. Self-sufficiency (also called self-containment) is the state of not requiring any aid, support, or interaction for survival; it is a type of personal or collective autonomy. On a national scale, a totally self-sufficient economy that does not trade with the outside world is called an autarky. ‘Self-sufficiency’ is the quality of feeling secure and content with oneself, a deep-rooted sense of inner completeness and stability. On a superficial level, it’s similar to ‘secure self-esteem’ – it’s an estimation of oneself as a worthy and decent person. But it goes deeper than secure self-esteem, in that it’s not just a cognitive but also an affective state – that is, it’s a feeling of fundamental wholeness and well-being.