2    What is Naturalism?

Naturalism is a cluster concept, like religion or realism, and similarly vague. There is no single defining characteristic of religion, only a collection of imprecise conditions that overlap or even conflict with one another. Something is a religion if it has many of those characteristics, but no condition is either necessary or sufficient. For example, most (but not all) religions have a supreme being; most (but not all) claim the supreme being is the creator of all things and has a personal interest in each of us; most (but not all) provide a moral code that guides our behaviour; most (but not all) call for worship and ritual performance on a regular basis; most (but not all) have a special class of people (gurus, ...

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