If I had not become Unitarian Universalist, I would have loved to become Bahá’í because I love this summary of the tradition: “Three core principles establish a basis for Bahá’í teachings and doctrine: the unity of God, that there is only one God who is the source of all creation; the unity of religion, that all major religions have the same spiritual source and come from the same God; and the unity of humanity, that all humans have been created equal, and the unity in diversity, that diversity of race and culture are seen as worthy of appreciation and acceptance. According to the Bahá’í Faith’s teachings, the human purpose is to learn to know and to love God through such methods as prayer, reflection and being of service to humanity.”
source: Bahá’í Faith
Just as in UU, Baha’i believe in the many incarnations or manifestations of divinity (or the spirit of life, or prophets, or the Universe, however you may wish to phrase it). The big difference between the two religions is the Baha’i is definitely considerably more religious, creedal, and has sacred scripture. UU’s don’t. But we both revere the prophets and messengers of all religions.
“The prophets of many religions, e.g. Jesus Christ, Moses, Muhammad, Buddha, are revered as Manifestations and Messengers of God, pre-existent spirits (with individual souls) sent to reveal God’s message.” source
UU’s also don’t believe in Evil or Satan. We are created essentially good. Salvation is given freely to all. To me this is the most wonderful of messages — so nurturing, life-affirming, embracing of all.
There are some differences though. Baha’i does believe that God punishes as a method of encouraging spiritual growth. Also, there is disapproval of homosexuality, which is at odds with UU being a welcoming denomination.
The main 2 things that keep me from Baha’i are its creedal nature and its monotheism.