Kilmer's "There was a little maiden"

There was a little maiden

In blue and silver drest,

She sang to God in Heaven

And God within her breast.

It flooded me with pleasure,

It pierced me like a sword,

When this young maiden sang: "My soul

Doth magnify the Lord."

The stars sing all together

And hear the angels sing,

But they said they had never heard

So beautiful a thing.

Saint Mary and Saint Joseph,

And Saint Elizabeth,

Pray for us poets now

And at the hour of death.

- Joyce Kilmer

I was skimming through the revised edition of Kilmer's Anthology of Catholic Poets (with a supplement after he died), and stumbled across this one. There was something in the last stanza that resonated with me - I can't explain why (other than pretensions of being a poet).