The great hymn of guidance for anyone navigating rough water.
The Vespers hymn for feasts of Our Lady, built on the image of a star steady enough to steer by.
When: On Marian feasts, on Saturdays, and any evening when the way ahead is unclear.
Why: It asks for a safe journey, loosed chains, light for the blind, and a calm road home. It is a prayer for people still in motion.