This is the first time Jesus is publicly recognised and announced as the Messiah and saviour, by the prophets Simeon and Anna. His mission to the Gentiles as well as the Jews is also foretold, as well as his destiny as a ‘sign of contradiction’ ‘destined for the rise and fall of many’.
And certainly it was an important occasion in Our Lady’s life as well, like her assumption and crowning. Her own importance in this plan is acknowledged and her destiny to suffer along with Christ is foretold. I imagine it had a very deep impact on her.
And don’t worry, Harry, most of us are beset by pride and stubborn refusal of obedience.