As I attempted to show with my discussion of Freud's use of myth however, Greek mythology and narrative must be taken as a product of its own age.
Regarding the moral nature which has been ascribed to Greek myths I wish to make several comments. The Greeks did not necessarily look to the God's and deities for moral guidance. (1) (2) Questions such as impiety were answered by myths such as that of King Midas, who was cursed with asses ears for his ridicule of Apollo and of Odysseus' oceanic punishment following his denial of Poseidon's influence over his victory in Troy. Myths such as that of Prometheus (i.e. those set in the primordial past, concerned with the interaction of deities with the cosmos) then should be seen as aetiologies. They are the product of a people seeking explanations for natural phenomena i.e. the existence of earth and sky, the stars, fire, water etc. The men in Hesiod's Prometheus myth are largely inanimate bystanders - they are acted upon by the God's thus giving rise to certain religious practices whose origin went back beyond living memory. All ancient cultures invoked the divine when attempting to explain certain trends and practices in culture and religion, thus the Egyptians would look to Osiris to explain mummification and Jews will look to Moses on Sinai to explain why priests wear certain types of robes etc.
Freud believed that the God's in Greek mythology represent some ideal of existence, something the human mind subconsciously desires as his/her own reality. However for the Greeks themselves this was not necessarily the case. For Aristotle happiness is only achieved by the active member of the Polis, Homer's 'hearthless, stateless' man (3) (4) is beyond happiness as are the Gods who have no morals. They are incapable of moral action because to act in a 'good' way there must be the possibility of acting wrongly or with consequence (5). No action construed by mortals to need moral direction would have a real effect on deities. Thus the examples of virtue the Greeks take is from men. Achilles, Odysseus, etc.
I would not therefore ascribe a particular moral message in Prometheus in the Greek sense. We cannot however, forget drama. Aristotle said that the purpose of tragedy was to purge the dark, sinful desires from the audience. By seeing violent and visceral actions on stage the desire to commit such acts themselves would be driven from the Greek mind. They would be emotionally cleansed; Aristotle called this process catharsis. Why then, is Prometheus a fitting subject for Aeschylus? By establishing Prometheus as the ultimate benefactor to mankind Aeschylus sets in motion the concepts of fear and pity evolving in the audience's response. (It is these two emotions that Aristotle postulated were the key to catharsis) We pity Prometheus because he is mankind's hero; punished for helping us, and we fear for him after Zeus hurls him into the abyss at the end of Prometheus Bound. The moral nature of Aeschylus's play then, is not dependent on Prometheus' own actions against Zeus' power, rather the audience is encouraged to pay respect to those who represent virtue.
Greek myths are not fables, they defy a reduction to one line moral messages. Christian uses of Prometheus as the symbol of the punished impious fail to recognise the fact that Prometheus is freed by Hercules. Freud in my opinion was closer to the truth. The mythological corpus is the collection of numerous storytellers, it therefore arguably represents a mean subconscious attitude. However his focus on the sexual rather than philosophical nature of the Greek discourse did, in my opinion, let his theories down. Nietzsche though came the closest. The interpretation of myth and drama as a representation of the conflict between the knowable and the unknowable, reason/civilisation versus chaos is apt. We see countless instances of Hero battling or taming monsters and natural phenomena, and in Prometheus we see the a divine clash of these two warring sides and a titanic intermediary. Prometheus perhaps instigates the concept of reason versus chaos in his introduction of the seed of civilisation (fire). The Olympian Gods meanwhile revel in chaos, they solve problems by destruction and attempt to barbarise mankind after Prometheus' gift. The moral message to extrapolate from this is therefore the very same one that is stolen from Socrates by Alciato the the Emblematum liber of 1531. 'What is above us is nothing to us'. Rather than promoting ignorance and adherence to church doctrine this quote should be taken in its original meaning. Famously Socrates was arrested and tried on charges of impiety and so this quote refers to his attempt to maintain and practice an empirical philosophy. We must trust in what we can see and understand. The gods may exist but they are beyond comprehension. Fire, science, reason, mankind itself; these are the things that can be observed and studied - it is in these realms that we must search for our moral guidance.
(1) "In Greece it was not a religious leader who divined a morality which superseded the virtues of the tribe, but a philosopher" Religion, Morality and Philosophy. A.H. Hannay. Proceedings of the Aristotelian Society. vol 40. 1939-40
(2) "The ancient greeks from the earliest record we have of them tend to see themselves, as it were,
estranged from the world, they are not part of the divine scheme,
the olympians are something very different from themselves and aloof to their struggles.
they are here alone." Great Ideas of Philosophy, lecture 2. Philsophy, did the Greeks Invent it? Prof. D. Robertson. (I would recommend buying this set of lectures from www.teach12.com)
(3) he that foments civil discord is a clanless, hearthless outlaw. Iliad Book IX. Line 51. http://www.online-literature.com/view.php/iliad 03/12/10
(4) Great Ideas of Philosophy, lecture 14. Aristotle on the Perfect Life. Prof. D. Robertson.
(5) Great Ideas of Philosophy, lecture 2. Philosophy, did the Greeks Invent it? Prof. D. Robertson
Robertson observed that while the Greeks were reverential to the Gods they felt a separation from the divine (shown in Homer's Iliad when the God's can be healed at will on the battlefield while heroes such as Achilles sacrifice themselves for the cause of virtue.). He says that the religious aspect of the ancient greek world calls by default a philosophical approach to the problems of life and mind - and especially morality, virtue, epistemology and governance.
(1) "In Greece it was not a religious leader who divined a morality which superseded the virtues of the tribe, but a philosopher" Religion, Morality and Philosophy. A.H. Hannay. Proceedings of the Aristotelian Society. vol 40. 1939-40
(2) "The ancient greeks from the earliest record we have of them tend to see themselves, as it were,
estranged from the world, they are not part of the divine scheme,
the olympians are something very different from themselves and aloof to their struggles.
they are here alone." Great Ideas of Philosophy, lecture 2. Philsophy, did the Greeks Invent it? Prof. D. Robertson. (I would recommend buying this set of lectures from www.teach12.com)
(3) he that foments civil discord is a clanless, hearthless outlaw. Iliad Book IX. Line 51. http://www.online-literature.com/view.php/iliad 03/12/10
(4) Great Ideas of Philosophy, lecture 14. Aristotle on the Perfect Life. Prof. D. Robertson.
(5) Great Ideas of Philosophy, lecture 2. Philosophy, did the Greeks Invent it? Prof. D. Robertson
Robertson observed that while the Greeks were reverential to the Gods they felt a separation from the divine (shown in Homer's Iliad when the God's can be healed at will on the battlefield while heroes such as Achilles sacrifice themselves for the cause of virtue.). He says that the religious aspect of the ancient greek world calls by default a philosophical approach to the problems of life and mind - and especially morality, virtue, epistemology and governance.