The Rosary and the Rosary: there are the usual forms, i.e. the 4 mysteries, with 5 chapters each; but there are also, for example, the Rosary of God's mercy, the Rosary with and for the souls in purgatory, the Rosary with Saint Michael the Archangel... There are also other expressions of faith and piety that have been practised by believers for a long time; they are necessary because believers and active people are needed. Catechesis on Prayer in the Liturgy, in collaboration with Fr Jean Louis Rakotomanantsoa.