A lot of people around the world ask this question of why we need religion. Here is what the Bahá'í Faith teaches.
Bahá'u'lláh, the Prophet Founder of the Bahá'í Faith, says:
"Religion is the greatest of all means for the establishment of order in the world and for the peaceful contentment of all that dwell therein."
So religion is here to help us become closer to God, Religion is here also to instill new social laws. Bahá'í believe that the teachings Bahá'u'lláh has given us will bring us closer to God, one of them is the unification of the world!