EN
The author analyses K.K. Baczyński’s poem Rorate coeli and points out the archetypal texts of this poetic prayer. The trail leads fi rst of all to a well-known Advent song Niebiosa, rosę spuszczajcie nam z góry [Drop down, ye heavens] and then to its original, i.e. the Latin medieval song Rorate, coeli, desuper. The ultimate source of the Advent motif turns out to be the Old Testament Book of Isaiah.