More than a little influenced by my third (or forth) trip through Pressfield's War of Art, the following is my own adaptation of the Invocation of the Muse. If you find it helpful, adapt your own or appropriate with my blessing.
Father God send your Muse, servant of The Creator and spirit of fire to ignite the work of these humble hands.
I pledge to you my service in the fight against Resistance and offer up these moments for you to shape and to guide.
Fill this place with your presence leaving no room for doubt or fear.
Come, and let the work begin.