Belief in Creation works because it provides a basis for living which honours the uniqueness of every living thing, and especially of human beings. It works because it places God, humanity and the non-human world in the right relationships. If evolutionary theory or postmodern animism are true, then we live in a world without absolute truth, and without any meaning apart from the subjective ideas of each individual. There is no right or wrong. Evolutionary theory says that we are not the pinnacle of God's creation, but merely a collection of atoms randomly thrown together for a few years before we dissolve again.
Humanity is no more than a statistical aberration in a blind uncaring universe.
New Age beliefs take on the ideas of evolution and just add a spiritual dimension. They are totally self-centred and individualistic. But Christians live with God as our ultimate source of authority. He rules over us. He has the right to tell us what to do, and how to have good relationships, with Him, with each other, and with creation.