Midas, the King of Lydia, has done Bacchus, God of wine, a good turn by returning his foster-father Silenus, who has wandered under the influence of age and alcohol. As we will see, Midas will regret the use he makes of the wish that Bacchus grants him as a reward. All is well that ends well: Bacchus will tell Midas where to wash his unwanted gift away in a river that, naturally, will be famous for its golden sand for ever after.
In myth the Hesperides, or Daughters of the Evening, were famed for their golden apples, and Danaë was seduced by Jupiter in the form of a shower of gold.