What is Hosanna in the Bible?

Before the trial of Jesus the crowds said "Hosanna"; but what does the word mean and why is it so important to our spiritual life today? Plus, how grace takes something worthless and turns it into something priceless; why was a donkey part of Holy Week; Buscaglia on the purpose of life; Tony Scott one why you are one choice away from transforming your life; how much of an impact did Mother Teresa really make; Thieleke on history’s bit actors; and the story of the Philadelphia Eagles coming to the rescue of a bullied child.