Keep watch with love, wise virgins, with your lamps alight.
See, the Bridegroom comes; go out to welcome him, alleluia.
From the Dominican Ordo:
Catherine Kosic was born of Orthodox parents in the country of Montenegro in 1493. As a young girl she was a shepherdess, but wishing to follow Christ more closely she embraced the solitary life, assumed the habit of a Dominican tertiary, and took the name Osanna. She spent her life in contemplation and prayer for the salvation of the world and became a counselor for many people. She died on April 27, 1565. Blessed Osanna is invoked especially for Church unity.
God of compassion,
enkindle anew in our hearts
the love of your cross.
By the life and prayers of Blessed Osanna,
who suffered for the unity of the Church,
may we become sharers in both your passion and your glory.
We ask this through our Lord Jesus Christ, your Son,
who lives and reigns with you and the Holy Spirit,
one God, forever and ever. Amen.