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<p>The spiritual-scientific investigator has ... to transform the soul itself into an instrument; then - when his soul is awakened and he can see into a spiritual world - he experiences, on a higher level, a similar great moment as blind people do when, having been operated upon, they look at a world they have not seen before. In a key series of lectures on personal development, Rudolf Steiner explains that the central mission of spiritual scienc...Seguir leyendo