At the end of the 16th century, the Abbey of the Holy Cross experienced a deep crisis, followed by a revival thanks to Michał Maliszewski, who became abbot after the visit of the bishop of Krakow, Cardinal Jerzy Radziwiłł. The protocol of this visit reflects the previous situation. Fr. Maliszewski, whose origin, youth and studies we have managed to establish, carried out a worldwide reform that has since attracted much praise. The main source of our work is the book titled "Lavacrum animae", published by Stanisław Grochowski in 1061 in Krakow. The enigmatic title of this work has so far made it difficult to determine that it was the famous book by Garcia Cisneros de Monsferrata entitled "Exercitatorio de la vida Spiritual" (1500). The book was intended to be a renewal program implemented at the Abbey of the Holy Cross.