I beg you Hades, please bring back Epimethius she was my love!!
Hades heart was made of steel and lots of people begged Hades for their loved ones back. Those people were refused many times. But Orpheus' music was so sweet and so moving that it softened the steel heart of Hades himself.
Hades gave permission to Orpheus to bring Eurydice back to the surface of the earth to enjoy the light of day. But by one condition!!
There was only one condition. You (Orpheus) will not look back as I ascended. You must trust that Eurydice is immediately behind me.
POOF Eurydice was gone.
He looked behind him to make sure Eurydice was still with him. At that very moment, she was snatched back because he did not trust that she was there.
Just as Orpheus had almost finished that last part of the trek. he looked behind him to make sure Eurydice was still with him.