The bulk of scholarly research and discussion of Mahler's Kindertotenlieder deals with musical concerns and analyses. This study explores the significance of Mahler's selection and use of the poetry of Friedrich Rückert and, in particular, the personal significance of the textual treatment to Mahler. A comparison of the original Rückert text with Mahler's and his textual alterations, as well as a literal translation of the text, is included. The results revealed through the process stated above provides the vocal performer of Gustav Mahler's Kindertotenlieder with a study and performance guide for the artist intent on a more complete textual understanding and delivery.