Aeolus, the ruler of the winds, gives Odysseus a bag containing all of the winds except the favorable westerly wind which he stirs to guide the hero and his crew home. The story of Aeolus and his winds is from the Book 10 of the 'Odyssey.'
The westerly wind stirred by Aeolus brings Odysseus' ship close to Ithaca in ten days. His mates think, however, that Aeolus has given Odysseus a treasure and they open the bag. As the winds escape, they form a storm that brings the ship back to Aeolia, the land ruled by Aeolus. The king refuses to help them this time as he is afraid of the wrath of the gods.