In 1991 he was sent to study theology at the Institute of St. Tikhon Zadonski at the monastery of the same name in South Canaan, graduating in 1995 with a master's degree.

A few months later, in August 1996, he was haircut as a monk, taking the religious name of Atanazy (Athanasius) in honor of the holy monk, marty Atanazy Brzeski.

On 1 September 1996, Abel (Popławski), the bishop of Lublin and Chełm, ordained him a hieromonk.

After his return, on 4 May 1999, he was appointed the confessor and dean of the monastic community in Jabłeczna.

[3] Chirotonia took place on 24 September 2017 in the Metropolitan Council of St. Mary Magdalene in Warsaw under the leadership of the Metropolitan of Warsaw and all of Poland Sawa.