Henri Jozef Machiel Nouwen was a Dutch Catholic priest, professor, writer and theologian. His interests were rooted primarily in psychology, pastoral ministry, spirituality, social justice and community. Over the course of his life, Nouwen was heavily influenced by the work of Anton Boisen, Thomas Merton, Rembrandt, Vincent van Gogh, and Jean Vanier.

Jean Vanier was a Canadian Catholic philosopher and theologian. In 1964, he founded L'Arche, an international federation of communities spread over 37 countries for people with developmental disabilities and those who assist them. In 1971, he co-founded Faith and Light with Marie-Hélène Mathieu, which also works for people with developmental disabilities, their families, and friends in over 80 countries. He continued to live as a member of the original L'Arche community in Trosly-Breuil, France, until his death.