Spirituality without the Supernatural
In non-supernaturalist terms, ‘Spirituality’ is merely another name for human nature. Or, in other words, Spirituality refers to the Human Spirit. The higher or positive aspects of human nature are, for many people, symbolized by metaphorical personifications known as gods. ('God' in the monotheistic Abrahamic religions). Another way of putting it is that the gods are fictional representations of these aspects.