 Though Fechner’s panpsychism arose from a mystical experience, it is not based upon it; that experience was the origin of his view, not the rationale for it. Fechner insisted in both Nanna and Zend-Avesta that his doctrine was based upon the best natural science. While he did not claim certainty or finality for his doctrine, he still maintained that it was the most “likely story” given the latest findings of empirical research. 