In this commentary on Pope Francis’s letter on liturgical formation, Desiderio desideravi, Rita Ferrone takes readers on a journey of discovery to the very heart of the mystery we celebrate in the liturgy. Along the way, it draws attention to particular elements readers might otherwise miss, and illuminates the many rich expressions and affirmations contained within the pope’s letter. Questions for reflection and discussion are provided at the end of each section, making this commentary a useful tool for both personal reflection and group discussion.