After Smith's death, the doctrine of premortal existence was elaborated by some other leaders within the LDS Church. Although the mind and intelligence of humanity were still considered to be co-eternal with God, and not created, Brigham Young taught that the spirit was different from the mind or intelligence, resolving the seeming conflict between Book of Mormon verses indicating God was creator and Smith’s later teaching that all individuals were co-eternal with God. Young postulated that we each had a pre-spirit intelligence that later became part of a spirit body, which then eventually entered a physical body and was born on earth. In 1857, Young stated that every person was "a son or a daughter of Father. In the spirit world their spirits were first begotten and brought forth, and they lived there with their parents for ages before they came here."