After graduating from the seminary, Boris continued his education, studying at the Orthodox Theological Faculty of the University of Warsaw.
Boris was appointed Supervisor of Religious Education (законоучитель) in the Secondary Schools in Grodno, which position he held until March 1939.
[3] In 1942, he was appointed Sacristan of the Cathedral in Kovno and held that position to the time of his evacuation to Austria in July 1944 with his wife.
Boris and his wife arrived in the United States in July 1949, and he began serving parishes of the Metropolia (now Orthodox Church in America).
On October 6 of same year took the monastic vows and was tonsured by the name of Kiprian by Archbishop Irenaeus (Bekish) of Boston and New England[3] The Sobor of Bishops elected him Bishop of Washington, D.C. and suffragan to the Metropolitan with residence in St. Tikhon's Monastery, South Canaan, Pennsylvania.
Kiprian was elevated to Archbishop and served as a member of the Lesser Synod of Bishops and as chairman of the Department of External Affairs.
[2] In 1970, he was elevated to the dignity of Archbishop and served as a member of the Lesser Synod of Bishops and Chairman of the Department of External Affairs.