Synchronicity blurs the boundaries of psyche and physis. This invisible dance of mind and matter suggested to Jung an interconnection between physical and mental events reflecting a unified ‘psychophysical space-time continuum’. His idea of exteriorization put forth the notion that unconscious thoughts can manifest themselves in the external world. I have related this to Bion's theory of thinking, where thoughts, which should be a prelude to action, become actions in themselves, projections of unthought thoughts. Through detailed clinical work with dreams I will explore the effects of early trauma on the development of the capacity to think, and the way in which synchronistic events relate to projections of early traumatic experiences which have not been ‘mentalized’.