What is Prayer of Saint Ephrem?

"The Prayer of Saint Ephrem" , is a prayer attributed to Saint Ephrem the Syrian and used during the Great Lent by the Eastern Orthodox and Byzantine Catholic Churches. In the Byzantine tradition, this prayer is considered to be the most succinct summation of the spirit of Great Lent and is hence the Lenten prayer par excellence, prayed during all Lenten weekday services. There are two versions of the prayer currently in use, reflecting liturgical Greek and Slavonic uses. Modern translations have been produced from both Greek and Slavonic, but some attempt to combine the two.