Now let your servant depart in peace" - to what and why?

Now let your servant depart in peace" - to what and why?

Simeon - Old, pious and just was drawn
to wait for Israel's consolation
as a watchman awaits the dawn.

Anna, she offered her widow's mite
praying and fasting in adoration
for many a day and many a night

Now I uncertain, frail and alone
Long to remember his favour and grace
As I humbly kneel before his throne.

So God calls me to put my dreams in his hands
releasing the grip that once held them
forever surrendering my plans

And as I lay them down at his feet
I turn not knowing
How, when I may be complete

So as I leave this place
and pray like Anna in hopeful expectation
that I this Advent may see your face.