Introduction. Prologues or introductions, prooimions, which defi ned the subject of the dialogue (σκοπός), described the place, time, and characters, played a key role in the dramatic structure of Plato’s dialogues. In the Athenian Neoplatonism of Proclus, allegorical commentary on the prooimions to Plato’s dialogues was given special signifi cance, which is evident from the extensive commentary of Proclus to the dialogue “Parmenides”. Theoretical analysis.