Spirit of Faith: The Oneness of Humanity is a compilation of writings and prayers that focus on the inherent oneness of all the peoples of the world. This collection contains writings from Bahaullah, the Bab, and Abdul Baha. The Spirit of Faith series explores a range of topics—such as the unity of humanity, the eternal covenant of God, the promise of world peace, and much more—by taking an in-depth look at how the writings of the Bahai Faith view these issues. The series is designed to encourage readers of all faiths to think about spirituality, and to take time to pray and meditate on these important topics.