Persephone likely took it to be a solemn duty as Queen of the Underworld, but not without love and joy.
Persephone lives both with the living and in the Underworld.
Persephone is Hades wife. He abducted her and took her to the underworld, as she was promised to him by Zeus. However Zeus did not inform Persephone or her mother Demeter. Persephone, while in the underworld, was give pomegranate seeds to each, thus tying her to the underworld. She spends half of the year with the living, and the other half in the Underworld with her King.
Gods and goddesses did not work for a living, and persephone was a goddess. She was the goddess of flowers and springtime, until she was taken by Hades to become queen of the underworld.
Hades took Persephone to the underworld because of Persephone's beauty.
Persephone does return to the living side of 'the veil' for half of the year. And she spends the other half in The Underworld with her husband Hades. She is tied to the underworld because of the pomegranate seeds she ate during her first visit there.
Persephone was celebrated by humans as the return of Spring, and hailed as Queen of the Underworld where the dead dwell after the living died.
Queen Persephone and King Hades of the Underworld.
Persephone had ate the pomegranate in the Underworld; so had to return to the Underworld a part of every year.
Queen Persephone is the queen of the Underworld. Hades is her husband and is ruler of the Underworld.
Persephone leaves the underworld in Spring and she returns in the beginning of Fall.
Persephone is both the goddess of Spring and the Queen of the Underworld.
It is not described in myth.