The Gemara in Brachos says that a person that says Ashrei three times a day receives a portion in the World to Come. The reason is because Ashrei has two great merits: it follows the Alef-Beis format and it contains the verse Pose’ach Es Yadecha, where we state that G-d provides for all. Therefore, Ashrei should be said with much concentration, especially the verse Pose’ach Es Yadecha.
4. Be kind to yourself. Speaking badly even about yourself is unethical.
הלכות שמירת הלשון 