After World War II, the Church both in the Diocese of Przemyśl and throughout Poland had to face with a multitude of new issues. The ecclesiastical situation on the above-mentioned area was even more difficult considering the specific character of political and social circumstances, which firstly caused dividing the diocese by a military cordon and secondly created the state of temporariness connected with the activity of the Ukrainian Insurgent Army (UIA). No one needs to be convinced that apart from population and material loss, each war wreaks great havoc in terms of morality, and restoring stabilisation in such a delicate matter entails immense effort on the part of clergy. One of the ways to engage in pastoral work in this area are missions and retreats, to which the present article is devoted. Its purpose is to depict consicely the efforts of priests who organized spiritual excerises for members of their parishes, very often in the face of material and organizational problems, and most of all the obstacles posed by the communist system. Additionally, the author focuses on the requirements for preachers made by diocesan authorities and presents a general outline of missions in 18 chosen parishes of the Diocese of Przemyśl. What is more, lots of attention is devoted to closed retreats.