Instead of this negativity, we should try to re-integrate spirit into the modern world, to re-establish its credentials, based on complexity ideas of fitness and value. And make no mistake, on these terms spirit has more to offer than many of the self-centred politics of materialism. There are three levels of being, the material (exemplified by rocks, aircraft, flesh and so on - typically the subject of science), the psychological (exemplified by thoughts, ideas - concepts based on generalisation from material things) and the spiritual (e.g. beauty, maths, deities, ethics - whose concepts have no physical existence). Each of these layers, in a complexity view, needs to have its fitness maximised in order that we maximise our overall fitness. By neglecting one we reduce greatly our individual and social fitness. It is time to again rebalance our natures and put into the spiritual realm (and to a lesser extent the psychological) that effort and research that has been poured into the material world. The spiritual layer, traditionally, integrates the other two. It goes beyond the concepts of outside (science) and inside (mind) to create a value system both transcending and incorporating these worlds. In this way it puts value in our lives and meaning to our existence. We can hardly afford to neglect it...