Using Saint Isidore of Seville as a starting point, the Liturgy of the Hours is briefly explored in relation to the fixed hours of prayer in Daniel, its sacrificial association, Trinitarian orientation, and connection to the mysteries of Christ.
There is one problem in the audio, a word is left out in a quote. It should have been: "because the Holy Spirit descended to earth at the third hour" (De Ecclesiasticis Officiis Book I, XX).