Saint Faustina prayed the Rosary every day. One time, she wrote:
… [One time] I saw many demons. One of these tried to vex me; taking the form of a cat, he kept throwing himself onto my bed and on my feet, and he was quite heavy, as if [weighing] a ton. I kept praying the rosary all the while, and toward dawn these beings vanished, and I was able to get some sleep. (412)
Turn to any page of St. Faustina's Diary, and you'll find spiritual gems, like this one:
Just two hours from the famous apparition site of Lourdes is the monastery of Notre Dame de Prouille. Here St.
Write that by day and by night My gaze is fixed upon him and I permit these adversities in order to increase his merit.