This concept from the social sciences refers to the process in which disempowered, marginalised, and minority groups progressively move closer to the mainstream groups in any given society. Moving closer does not mean eliminating differences, or indeed acting and thinking as if differences were not there – particularly in the case of mental and physical disabilities – but rather to accommodate them. That is, to act based on the promotion and protection of human rights, non-discrimination, equality of opportunity, solidarity and empowerment. Importantly, social (re)integration is to be achieved through mutual approximation between minority and mainstream groups. Therefore, it requires broad societal changes to be truly effective.