"Shephard's Why" is an orchestral piece from the Season 6 soundtrack.
Claire pulls out a music box and explains that Christian left it for her. This surprises Jack, but no more than Claire's existence. Jack then describes going to Sydney to collect their father's body, and Claire reveals that she came from Sydney as well - on the same flight as Jack.
Jack then asks for a closer look at the music box.
Full list of appearances
"Shephard's Why" and its variations play during the following scenes:
- Michael explains that he's stuck on the Island. ("Everybody Loves Hugo")
- Jack tells Claire how Christian died. ("The Candidate")
- Locke tells Jack he's ready to let go of his wheelchair. ("What They Died For")
This theme is an emotional variation of the series' mystery theme.
The theme appears in "Passing the Torch".