Dionysian, Vitalism, Evolution

Nietzsche's Dionysian principle, as well as the Will to Power that is derived from it, can, with justification, be classified as 'Naturalistic', but the baggage attached to that term diminishes the significance of the principle.  Fresher, and, insofar as it is a Life-affirming principle, etymologically appropriate, is 'Vitalistic', which, thus calls attention to two weakness in the prominent Vitalism of the era--Bergson's.  First, while Nietzsche's 'Order of Rank' entails differences of degree, as has been previously discussed, Bergson vacillates in conceiving the main division of his system--Spirit vs. Matter--as sometimes a distinction of degree, sometimes one of kind.  Furthermore, while Order of Rank has no inherent maximum, Spirit is an absolute limit for Bergson.  Thus, the 'highest' can always be surpassed, i. e. 'overcome', for Nietzsche, but not for Bergson.  So, despite Bergson's well-known title 'Creative Evolution', Nietzsche' Vitalism is actually the more Evolutionary of the two varieties.