For those of you with Roman Catholic Daily Missals, you may have been surprised to see that each day of Lent has its own Mass propers - Introit, Collect, Scripture readings, Offertory, Communion, Post Communion, etc. Dom Guéranger explains.
The Liturgical Year
by Dom Guéranger, O.S.B.
Each feria of Lent has a proper Mass; whereas, in Advent, the Mass of the preceding Sunday is repeated during the week. This richness of the lenten liturgy is a powerful means for our entering into the Church's spirit, since she hereby brings before us, under so many forms, the sentiments suited to this holy time... All this will provide us with most solid instruction; and as the selections from the Bible, which are each day brought before us, are not only some of the finest of the sacred volume, but are, moreover, singularly appropriate to Lent, their attentive perusal will be productive of a twofold advantage.