In the two lecture courses featured in this volume, Rudolf Steiner presents a radical new paradigm. Tackling the central dilemma of modern civilization the polarisation of science and spirituality he seeks to broaden natural science through a comprehensive spiritual science. Rather than harking back to old spiritual forms or religions, Steiners approach is based on a conscious and systematic intensification of thinking and perception. Rather than distancing us from life, each of the lectures in this volume brings us closer to reality. As Rudolf Steiner states: Rosicrucian theosophy... does not make us into eccentrics, outsiders, but into friends of existence, for it doesnt look down on everyday life, alienating us from our mission on earth; it brings us closer.