Humanity's profound spiritual traditions universally affirm the oneness of ultimate reality—an eternal, indivisible divine essence beyond multiplicity. Called Brahman (Hinduism: "one only, without a second," Chandogya Upanishad 6.2.1), the Lord (Judaism: "The Lord is one," Deuteronomy 6:4), God the Father (Christianity: "one God, from whom are all things," 1 Corinthians 8:6), Allah (Islam: "He is Allah, the One... with no equivalent," Surah Al-Ikhlas), Ik Onkar (Sikhism: One Universal Creator), or Ahura Mazda (Zoroastrianism: supreme uncreated deity). The Bahá'í Faith sees one heavenly Source for all revelations, while Mahayana Buddhism recognizes undivided Dharmakaya in interdependent oneness. Though expressed variably—personal or impersonal—this truth unites: one source of all, calling for compassion, harmony, and inner peace in recognizing the divine everywhere.