 For one , Cobb has stressed the problems inherent in what he calls the “ substantialist ” worldview — ultimately derived from Classical Greek philosophy — that still dominates Christian theology , as well as most of western thought . This " substantialist " way of thinking necessitates a mind @-@ matter dualism , in which matter and mind are two fundamentally different kinds of entities . It also encourages seeing relations between entities as being unimportant to what the entity is " in itself . " In contrast to this view , Cobb follows Whitehead in attributing primacy to events and processes rather than substances . In this Whiteheadian view , nothing is contained within its own sharp boundaries . In fact , the way in which a thing relates to other things is what makes it " what it is . " Cobb writes : 
