The interface between Ch’an Buddhist practice and Christian practice is that of contemplative prayer. Contemplative prayer is preferably ‘silent’, and comprised of a single, meaningful, one-syllable word.
This, in effect, is the realised integration of ‘existence’ and ‘non-existence’ in an instant. This would imply that everything exists and does not exist simultaneously – and this includes all notions of ‘god’ and ‘non-god’. Although I am not religious in anyway, I can truthfully state that god exists AND does not exist in equal measure, and that I am disinterested in either view.