"Who are catechists?"

Who are catechists? They are people who keep the memory of God alive; they keep it alive in themselves and they are able to revive it in others.

Once again, reading Pope Francis I feel I could be reading Pope Benedict XVI: Pope Francis' homily at the Mass for Catechists.

What is the Catechism itself, if not the memory of God, the memory of his works in history and his drawing near to us in Christ present in his word, in the sacraments, in his Church, in his love? Dear catechists, I ask you: Are we in fact the memory of God? Are we really like sentinels who awaken in others the memory of God which warms the heart?

UPDATE: And in the text of Pope Francis meeting with catechists, in Rome for the Year of Faith pilgrimage, two days earlier:

The heart of a catechist always beats with this systolic and diastolic movement: union with Christ – encounter with others. Both of these: I am one with Jesus and I go forth to encounter others. If one of these movements is missing, the heart no longer beats, it can no longer live. The heart of the catechist receives the gift of the kerygma, and in turn offers it to others as a gift.