" There is a saying that 'the psychotic drowns in the waters that the mystic swims in.' The health and structural integrity of the ego means the difference between spiritual emergence, the unfolding of a transpersonal identity; and a spiritual emergency a crisis brought on by the same unfolding, during which the foundations of sanity can be shaken. "

― Jason Kirkey , The Salmon in the Spring: The Ecology of Celtic Spirituality