Image of God
It has been argued that, in transhumanist thought, humans attempt to substitute themselves for God. The 2002 Vatican statement "Communion and Stewardship: Human Persons Created in the Image of God," stated that "changing the genetic identity of man as a human person through the production of an infrahuman being is radically immoral", implying, that "man has full right of disposal over his own biological nature". The statement also argues that creation of a superhuman or spiritually superior being is "unthinkable", since true improvement can come only through religious experience and "realizing more fully the image of God". Christian theologians and lay activists of several churches and denominations have expressed similar objections to transhumanism and claimed that Christians attain in the afterlife what radical transhumanism promises, such as indefinite life extension or the abolition of suffering. In this view, transhumanism is just another representative of the long line of utopian movements which seek to create "heaven on earth". On the other hand, religious thinkers allied with transhumanist goals such as the theologians Ronald Cole-Turner and Ted Peters hold that the doctrine of "co-creation" provides an obligation to use genetic engineering to improve human biology.