Dagaz is the letter D
Anglo-Saxon Rune Poem (from ragweedforge.com)
Day, the glorious light of the Creator, is sent by the Lord;
it is beloved of men, a source of hope and happiness to rich and poor,and of service to all.
This week is characterized by the Rune Dagaz, the rune of the Day, of Change, and a rune of Time. It signifies that this week will be filled with all those opportutinies, weather for the light of Day bringing boon or bane, and the changes that will come from it.