"Our existence has the frailty of the grass that sprouts at dawn; suddenly it hears the whistle of the sickle that reduces it to a pile of hay," the Pope said.
To this radical weakness -- man is "dust" -- the Bible also associates sin, leading the Pope to say: "In us there is finiteness but also culpability."
The Holy Father explained how the human being can only overcome himself by taking recourse to his Creator, the reason why the Psalm asks that the grace of God "sustain and gladden our days, yet so fragile and marked by affliction."
After the death and resurrection of Christ, this frailty of man finds "the source of life beyond death," allowing us "to rejoice and be 'glad all our days,'" the Pope said. Zenit