Protestants generally believe in the soul's existence, but fall into two major camps about what this means in terms of an afterlife. Some, following Calvin, believe in the immortality of the soul and conscious existence after death, while others, following Luther, believe in the mortality of the soul and unconscious "sleep" until the resurrection of the dead. Various new religious movements deriving from Adventism—including Christadelphians, Seventh-day Adventists and Jehovah's Witnesses—similarly believe that the dead do not possess a soul separate from the body and are unconscious until the resurrection. The Church of Jesus Christ of Latter-day Saints teaches that the spirit and body together constitute the Soul of Man (Mankind). "The spirit and the body are the soul of man." Latter-day Saints believe that the soul is the union of a pre-existing, God-made spirit and a temporal body, which is formed by physical conception on earth. After death, the spirit continues to live and progress in the Spirit world until the resurrection, when it is reunited with the body that once housed it. This reuniting of body and spirit results in a perfect soul that is immortal and eternal and capable of receiving a fulness of joy. Latter-day Saint cosmology also describes "intelligences" as the essence of consciousness or agency. These are co-eternal with God, and animate the spirits. The union of a newly-created spirit body with an eternally-existing intelligence constitutes a "spirit birth" and justifies God's title "Father of our spirits". Some Confucian traditions contrast a spiritual soul with a corporeal soul. "Ātman" is a Sanskrit word that means inner self or soul. In Hindu philosophy, especially in the Vedanta school of Hinduism, Ātman is the first principle, the "true" self of an individual beyond identification with phenomena, the essence of an individual. In order to attain liberation (moksha), a human being must acquire self-knowledge (atma jnana), which is to realize that one's true self (Ātman) is identical with the transcendent self Brahman. The six orthodox schools of Hinduism believe that there is Ātman (self, essence) in every being. In Hinduism and Jainism, a "jiva" (, , alternative spelling "jiwa"; , , alternative spelling "jeev") is a living being, or any entity imbued with a life force. In Jainism, "jiva" is the immortal essence or soul of a living organism (human, animal, fish or plant etc.) which survives physical death.