I mentioned this Christmas delight in passing in my post about Sydney's Christmas lights, but I wanted to see it for myself - and of course share it with you!
As I hurried through Sydney's Hyde Park towards St Mary's Cathedral last Wednesday evening it was clear that everyone had the same idea. We had come to see the amazing laser light display staged each evening from 8.30pm.
Hundreds and hundreds of pedestrians thronged to the huge plaza of Cook and Phillip Square, and minibuses from suburban Catholic parishes and neighbourhood organisations lined up along the street to let excited passengers alight.
For the two weeks leading up to Christmas the 75 metre high facade of St Mary's has become a huge canvas on which to project stained glass-like images and nightly hundreds of spectators gaze in wonder, mobile phones held aloft to capture the photos as the 14 minute show plays over and over until midnight.
We watch as Mary and Joseph's animated journey to Bethlehem takes them through green, grassy areas, as well as the barren Judean desert.
We see the houses and buildings of old Bethlehem as they reach the outskirts of the town and seek a bed for the night.
And we see Mary, Joseph and the newborn Jesus projected on the soaring facade.
You can get a good idea of the scale of the animations by looking at the crowds in the bottom of this picture of the shepherds in the field.
The wise men are featured too, making their journey from far away. [Unfortunately this one's a little blurred].
The Christmas story is followed by a spectacular series of paintings of the Madonna and Child through the ages. It was quite breathtaking to see them so large.
The next scene is a child's view of Christmas, with a nursery and toys.
A Christmas tree is gradually decked out with candlelight and a "Merry Christmas" ribbon.
In this final amazing effect it's almost impossible to tell which is the real architecture of St Mary's and which is part of the pink and blue fantasy!