Saint Ambrose of Milan, in his commentary on the Gospel of Luke, writes that Mary set out in haste towards the hills, “because she rejoiced in the promise and sought to serve others with the enthusiasm born of her joy. Full of God, where else could she have gone if not towards the heights? The grace of the Holy Spirit permits no delay”. Mary’s haste is thus a sign of her desire to serve, to proclaim her joy, to respond without hesitation to the grace of the Holy Spirit.