The Roman Missal provides the texts, rubrics, and pastoral norms for celebrating the Eucharist throughout the liturgical year. It presents the Order of Mass, including the Introductory Rites, Penitential Act, and the form used when a priest celebrates with a single minister, as well as directions for concelebration and the Eucharistic Prayers for Reconciliation. The appendices describe the blessing and sprinkling of water as a memorial of Baptism, especially during Easter, and give guidance on Commons, Ritual Masses, Votive Masses, Masses for various needs, and Masses for the Dead. The Proper of Seasons covers Advent, Christmas, Lent, Holy Week, the Sacred Paschal Triduum, Easter, Pentecost, and Ordinary Time, with prayers and antiphons for Sundays, weekdays, octaves, and major celebrations such as the Epiphany, Ascension, and Baptism of the Lord. The Proper of Saints classifies celebrations as solemnities, feasts, or memorials and explains how Commons supply appropriate texts for different vocations. Across these rites, the prayers unite the mysteries of Christ’s Incarnation, Passion, Resurrection, and the gift of the Holy Spirit with petitions for conversion, holiness, unity, charity, and eternal life.