Praying for Mercy (Daniel 9:1-19)

Daniel has reported to us his visions that he received by the grace of God. It would seem that the vision would be the source of Daniel's comfort and contemplation. This is not the case, but we witness Daniel contemplating Jeremiah's promise. Daniel submits to the word of God rather than appealing to his vision. How does his submission to the word of God and his prayer teach us about confession?