"Notes" of Fr. Bronisław Markiewicz are the main source for understanding his spirituality. They cover the years 1867-1891 and it is known that he read them during retreats and days of recollection until the end of his life. They are a testimony to his inner life throughout his life. "Notes" were compiled and analysed by Karol Górski and Fr. Mieczysław Głowacki. "Notes" are divided into two parts, separated by the author's entry into the Salesian Order in 1886.