The term "spirituality" has been given a variety of definitions. One definition that you may find helpful is "Spirituality is our lived relationship with Mystery."* In place of "Mystery," some may prefer to use the word "God," the "Divine," "Spirit," "Higher Power," the "Ground of All Being," or some other term to name the underlying spiritual and transcendent reality of all creation. "For in [God] we live and move and have our being" (Acts 17:28). From the Catholic Christian faith tradition, spirituality refers to consciously growing in our dynamic relationship with God through Jesus Christ and, by God's grace, seeking to live a life of love in conformity with the Holy Spirit, in communion with the Church—the People of God, the Body of Christ, the Communion of Saints.
*Thomas Hart, Spiritual Quest: A Guide to the Changing Landscape,(Mahwah, NJ:Paulist Press, 1989), 40.