Preexistence is associated with both Pythagoras and Orpheus, however. Plato is the most important classical source for ideas about pre-existence, writing about it in Phaedo, Meno, Phaedrus, Republic, and Timaeus. Symposium also presents a version of soul-mate love as have premortal bases. Preexistence supports Plato's particular epistemology as well as a version of theodicy and his understanding of erotic desire. Plato also links preexistence to theosis, a connection that will contribute to the paradigms eventual demise.
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