In my opinion, Within You is the song that ties the story together.  We know Jareth loves Sarah, and we know that because Sarah created Jareth, that she wants him to love her.  Jareth knows, as Sarah knows, that she is about to save her brother and return home to “reality”, thus letting go of The Labyrinth forever.  Jareth begs her to stay, offers to be her slave, and transforms into an owl after Sarah tells him that her imagination no longer has any power over her.  After saving Toby, Sarah lets go of her childhood fantasies, including The Goblin King.

How you’ve turned my world, you precious thing

You starve and near exhaust me

Everything I’ve done, I’ve done for you

I move the stars for no one

You’ve fun so long

You’ve run so far,

Your eyes can be so cruel

Just as I can be so cruel

Though I do believe in you.

Sarah: Toby!

Jareth: (song, cont.) Yes, I do.

Live without your sunlight

Love without your heartbeat.

I can’t live within you.