They belong together. Simply as that. (season 4 clips included!)

song: We Belong Together by Gavin DeGraw

We belong together,
like the open seas and shores.
wedded by the planet force,
we've all been spoken for.


The hammer may strike, be dead on the ground.
a nail to my hand, a cross on his crown.
we're done if, who we're undone,
finished if who we are incomplete.
as one we are everything,
we are everything we need.

we belong together,
like the open seas and shores,
wedded by the planet force,
we've all been spoken for

What good is a life, with no one to share,
the light of the moon, the honor of a swear.
we can try to live the way in which you speak,
taste the milk of your mother earth's love,
spread the word of consciences you see,
we are everything we need

We belong together,
like the open seas and shores.
wedded by the planet force,
we've all been spoken for.

All this indecision,
all this independent strength,
still, we've got our hearts on save,
we've got our hearts on safe.

someday when you're lonley,
sometime after all this bliss,
somewhere lost in emptiness,
I hope you find this gift...
I hope you find this gift...
I hope you find this gift.

Clips belong to ABC and the creative team of LOST (less info)