When a person wants to be received into the Catholic Church they go through a process that takes about nine months to compete. Until recently it was referred to as the Rite of Christian Initiation of Adults which gave emphasis to the steps one went through in the liturgy over that period. Now that process is referred to as OCIA which stands for Order of Christian Initiation of Adults which gives emphasis to the life experience one goes through in the process. The life experience is made up of Catechesis, that is to say, learning the content of the faith, and mystagogy that is to say, seeing and experiencing in rehearsal the sacraments one will receive when one is a Catholic. So, to become a Catholic the Church, through its Catechists, goes out of its way to make sure that a candidate knows what they are doing, what they are getting into, walks into the faith with both eyes fully open, and also has convinced one's Catechists that one really does want to be a Catholic for good and worthy reasons, not simply to please someone else.