Published Aug 28, 2007 at 8:00 PM EDT Updated Mar 13, 2010 at 5:48 PM EST The publication of Mother Teresa's letters, concerning her personal crisis of faith, can be seen either as an act of considerable honesty or of extraordinary cynicism (or perhaps both of the above). These scrawled, desperate documents came to light as part of the investigation into her suitability for sainthood; an investiga