Credo of the Interior Life - a resource
Attached is a PDF that you can freely use. It is an abridged version using as much of his own words as possible of Dom Chautard's Credo of the Interior Life found in the opening chapters of The Soul of the Apostolate. I summarized this for my parish's annual Catechist Day and delivered it in a talk, walking through each of the "Eleven Truths" together.
I thought you would find this helpful.