Socrates completes his fourth analogy illustrating why rhapsodes lack techne and episteme when performing a poet's best poems in the best way possible. This time, very little of substance seems to have been added to the original magnet analogy. Possibly an attempt has been made to shift the notion of possession as a divine occupation replacing the rhapsode's intelligence towards the notion of possession as a holding by magnetic attraction, but the absence of intelligence is still the main point.
