Wrzała, Elżbieta (The Pontifical University of John Paul II in Cracow, 2020)
During his many journeys and speeches in his teaching, John Paul II proved that spiritual ecumenism is a sine qua non for all ecumenical activity. He is the „soul” of all ecumenism. Spiritual ecumenism, thanks to conversion of the heart, holiness of life, individual and community prayer for unity, becomes a clear criterion for the existence of a genuinely Christian ecumenical attitude.