>>713984827The greek/roman gods are depicted as a superhuman race that created humanity but were mysteriously wiped out later. They offer cryptic knowledge to Desmond, through Ezio. If you also read the assassin codex, which was written by Altair, he criticises monotheistic religions for only offering a single answer to all anaswered questions, while praising polytheistic religion for attempting to rationalise the various unexplained forces of nature(like gravity, for example) by assigning their properties to various gods, who cooperated or competed with one another, just like forces of nature do.