Ayni (Quechua and Aymara; also spelled Ayniy or Aini) can refer to either the concept of reciprocity or mutualism among people of the Andean mountain communities or the practice of this concept. As a noun, the law of ayni states that everything in the world is connected, and is the only commandment that rules daily life in many communities like the Q'ero. As a verb, this often refers to the cooperation between the members of a community when one member gives to another, he or she [or they] is [are] entitled to receive something back. Well-known practitioners of Ayni include the Quechuas and Aymara, as well as numerous other tribes that live in the Peru, Ecuador, and Bolivia. [Source: Wikipedia]