The Luminous Ordinary is a personal and inviting reflection on the foundress of the Sisters of Mercy Catherine McAuley in Dublin, Ireland, in 1831. The remarkable growth of her early groups of women, serving the poor, establishing schools and hospitals all over the world, and inviting a personal spirituality that is more than relevant todaythese are the focus and invitation of this booklet. Reading it, you are invited to engage the realities of her time as their relevance shines through in ours. This is a reflection on the power of women to change the world.