ARTHUR: Good idea, oh Lord!
GOD: 'Course it's a good idea! Behold! Arthur, this is the Holy Grail. Look well, Arthur, for it is your sacred task to seek this Grail. That is your purpose, Arthur -- the Quest for the Holy Grail.
ARTHUR: A blessing!
LAUNCELOT: A blessing from the Lord!
GALAHAD: God be praised!
I've always found it interesting that God told Arthur that his task was to seek the Holy Grail. He was not actually charged with finding it. I generally hate the old adage "Its about the journey, not the destination."
I've always thought that people who say that either don't know where they are going, or have resigned themselves to the dark realization that their destination is unreachable. Under those circumstances, of course you'd want to convince yourself that the most important thing is the journey!
Listen, for me, it's all about the destination. Clearly the journey is of vital importance, without it you cannot reach the destination, but without the destination, the journey is pointless. It seems however, that in this case the journey was the most important thing. The task was the important thing, "...your Knights of the Round Table shall have a task to make them an example in these dark times."
The real goal was to set an example in dark times, not actually find the Grail. Unfortunately, as it turned out they failed at both tasks...
ROGER: Are you saying 'nee' to that old woman?
ARTHUR: Um, yes.
ROGER: Oh, what sad times are these when passing ruffians can say `nee' at will to old ladies. There is a pestilence upon this land, nothing is sacred. Even those who arrange and design shrubberies are under considerable economic stress at this period in history.