While not being formally identified with them, Catechesis is built on a certain number of elements of the Church's pastoral Mission which have a catechetical aspect, that prepare for catechesis, or spring from it. They are: the initial proclamation of the Gospel or missionary Preaching to arouse Faith; examination of the Reasons for belief; experience of Christian living; Celebration of the Sacraments; integration into the Ecclesial Community; and Apostolic and missionary Witness. 9