Check out Sophia Institute Founder Carolyn Rivers' essay: "Spirituality is the recognition that we are all spiritual beings in a material world, that there is the Divine at the center of all being, where love and wisdom are held, where the physical body, the mind, and the soul and spirit are honored, where there is an awakening of the heart."

http://www.postandcourier.com/news/2010/jun/27/spirituality-vs-religion/