The golden fleece in Greek myths is a symbol of heroism and the quest for glory. It is associated with the hero Jason and his Argonauts, who undertook a perilous journey to retrieve it from the kingdom of Colchis. The fleece represents not only material wealth but also the divine approval and favor required to succeed in noble endeavors. Securing the fleece entails trials and challenges that test courage and loyalty, emphasizing themes of self-discovery and transformation integral to Greek mythology.