One Reality is a compilation of passages from the Bahá'í writings that explores the relationship between science and religion, and demonstrates the Bahá'í perspective that the two seemingly opposing forces can live in perfect harmony. As 'Abdu'l-Bahá, the son of the Prophet and Founder of the Bahá'í Faith, states: "If we say religion is opposed to science, we lack knowledge of either true science or true religion, for both are founded upon the premises and conclusions of reason, and both must bear its test."

Meticulously researched and compiled by Bonnie J. Taylor, One Reality offers a comprehensive overview of the subject from a Bahá'í perspective, and includes a thought-provoking and challenging introduction from John Hatcher, a highly respected academic and the author of numerous books about Bahá'í scripture and theology.