 Views on divine action are related to the doctrine of creation. Theologians commonly draw a distinction between general and special divine action, but within the field of science and religion there is no universally accepted definition of these two concepts. One way to distinguish them (Wildman 2008: 140) is to regard general divine action as the creation and sustenance of reality, and special divine action as the collection of specific providential acts, such as miracles and revelations to prophets. Drawing this distinction allows for creatures to be autonomous and indicates that God does not micromanage every detail of creation. Still, the distinction is not always clear-cut, as some phenomena are difficult to classify as either general or special divine action. For example, the Roman Catholic Eucharist (in which bread and wine become the body and blood of Jesus) or some healing miracles outside of scripture seem mundane enough to be part of general housekeeping (general divine action), but still seem to involve some form of special intervention on God’s part. Alston (1989) makes a related distinction between direct and indirect divine acts. God brings about direct acts without the use of natural causes, whereas indirect acts are achieved through natural causes. Using this distinction, there are four possible kinds of actions that God could do: God could not act in the world at all, God could act only directly, God could act only indirectly, or God could act both directly and indirectly.