image via Max Pixel
mystery
What are you, my God?
I come to You like Jacob in the garments of Esau
Isaac Blessing Jacob, by Gioacchino Assereto [Public domain], via Wikimedia Commons
all things returning into unity
Nehemiah Views the Ruins of Jerusalem’s Walls, 1866, Gustave Doré, via Wikimedia Commons
that wonderful and sacred mystery
Sacramentarium Gelasianum via wikimedia commons
share in this profound mystery
Birth of Christ, Anonymous 18th century
reproduce in me
Theotokos and Christ Child, photo by Fr Ted
the mystery of your incarnation
Ancient Christian Iconogrphy. Authors unknown [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)%5D, via Wikimedia Commons
instruct my speech
image Thomas Aquinas, uploaded by Polmars at French Wikipedia __________________________________
O creator past all telling, you have appointed
from the treasures of your wisdom the hierarchies of angels,
disposing them in wondrous order above the bright heavens,
and have so beautifully set out all parts of the universe.
Be pleased to shed on the darkness of mind in which I was born,
the twofold beam of your light and warmth
to dispel my ignorance and sin.
You make eloquent the tongues of children.
Then instruct my speech and touch my lips with graciousness.
Make me keen to understand, quick to learn, able to remember;
make me delicate to interpret and ready to speak.
Guide my going in and going forward, lead home my going forth.
You are true God and true man, and live forever and ever.
prayer & verse 
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