What is the name of the Michael Giacchino song when Locke is on top of the hatch and a

[girl_in2_10is]

light appears? This is just after Boone has died the shot goes to Locke, yelling and screaming out to the island "I've done everything I can- why are you doing this to me?!" He's on the hatch on his knees and then all of a sudden a light appears from within the hatch. What is this song called that is being played while all of this is happening?