This paper suggests that an ontologically reductionist view of nature which also accepts the completeness of causality at the level of physics can support (1) the blissful transfiguration of the moral, (2) mystical release from standard ego-identification, and (3) psycho-physical transformation cultivated through meditative practice. This mystical naturalism provides the basis for a thicker, more vigorous institutional religious life, including religious life centred around meditation practices, personalist meanings, and the theology of incarnation, than current proposals for strongly naturalist religions allow.