There is a lovely post at Vultus Christi to which I direct your attention.
This is how it begins:
The wintertime liturgy sparkles with a constellation of virgin martyrs and holy women. The Roman Canon enshrines their names: Felicity, Perpetua, Agatha, Lucy, Agnes, Cecilia and Anastasia. In the darkest months of the year, they shine like so many little flames taken from the Paschal Candle in the great and holy night of the Resurrection. Today, we fix our gaze on Agnes.
If I Love Him
The Office of Saint Agnes is one of the most beautiful in the Roman Liturgy. It expresses all the sentiments of the little virgin martyr’s pure and passionate heart. “Christ is my Lover,” she sings in the Third Responsory at Matins, “and I am entering with Him into the marriage-chamber. . . . The instruments of His music sound sweetly in my ears. If I love Him I shall be chaste; if I touch Him I shall be clean; if I embrace Him I shall be a virgin indeed.”
See the rest there.