A closer look at Ward's argument reveals that the key religious concept 'God' at work in his theory has undergone a startling transformation in response to a certain scientific worldview, and the role that God is thought to play in our world, in Ward's view, is itself constrained by what is possible according to the scientific worldview in question. In short, Ward conceives God as 'the sustainer of a network of dynamic interrelated energies', and, as such, God 'might well be seen as the ultimate environing non-material field which draws from material natures a range of the potentialities which lie implicit within them. (See God, Chance & Necessity, 1996, p. 57. Thus, in explaining how religion and science can be complementary, Ward has been compelled to re-conceptualise 'God'.