Between 1943-1945 she was imprisoned by the Czech Nazi puppet government. At that time, she also converted to Catholicism and after World War II she participated in the activities of the Czech catholic circles, inspired by the Croatian Jesuit Tomislav Kolakovic. She co-worked with active Czech Catholics Oto Mádr, Josef Zvěřina and others. In February 1948, she attended, as the only one of the Charles University pedagogues, the student march to Prague Castle. As this was to support the president Edvard Beneš, it brought her the negative attention of the Czech communists. At the first after-February meeting of the professors of the Faculty of Arts she was again the only one who protested against expulsion of the students who had participated in the march from school. She proclaimed: