It's temptation. Bowie as Jareth throughout the Movie simply offers to Sarah what he thinks she wants, the frills and baubles. What's a more pretty bauble than the sky or moon itself? The simple fact she was tempted by a piece of fruit (cue Garden of Eden) should have been a dead give away that it was more about Jareth trying to bring her to his side, to willingly let the child go.
It's temptation. Bowie as Jareth throughout the Movie simply offers to Sarah what he thinks she wants, the frills and baubles. What's a more pretty bauble than the sky or moon itself? The simple fact she was tempted by a piece of fruit (cue Garden of Eden) should have been a dead give away that it was more about Jareth trying to bring her to his side, to willingly let the child go.