The Catechism of the Catholic Church refers to the "mystagogy of the celebration" (page 268). In my opinion I understand that they mean, as specific and brief, the steps that the priest is still in the liturgical celebration of the sacrament of baptism "."Therefore, in this sense I understand that the word the word "mystagogy" means "steps, sequence, order for the development of the celebration, this is case of the sacrament of baptism."