5. States shall promote harmonious intercultural relations, ensuring that the curricula of state educational systems reflect the pluricultural and multilingual nature of their societies and encourage respect for, and knowledge of, the different indigenous cultures. States, in conjunction with indigenous peoples, shall promote intercultural education that reflects the cosmovision, histories, languages, knowledge, values, cultures, practices, and ways of life of those peoples. 6. States, in conjunction with indigenous peoples, shall adopt necessary and effective measures to ensure the exercise and observance of those rights. ▼Article XVI. Indigenous spirituality 1. Indigenous peoples have the right freely to exercise their own spirituality and beliefs and, by virtue of that right, to practice, develop, transmit, and teach their traditions, customs, and ceremonies, and to carry them out in public and in private, whether individually or collectively. ••• 17 • • •