Full title: Discursus ascetici de regi via S. Ignatii Fundatoris Societatis Jesu
"Imprimatur" is a Latin expression that means "let it be printed." It is an official permission granted by the Catholic Church hierarchy or a Catholic religious institution to allow the printing of a specific religious text, such as a book or sermon. The publication of book "Discursus ascetici de regi via S. Ignatii Fundatoris Societatis Jesu" has been approved by Bishop Konstanty Kazimierz Brzostowski. "Imprimatur" informs readers that the book or text complies with Catholic Church doctrine and can be read with confidence in its faithfulness