Adding in my two cents to the S/K theory some of you guys had going
True they didn't share a Paopu fruit (as in eat) but they did draw a picture back in the Secret Place of them extending the fruit to eachother (someone pointed that out earlier) Later on, Kairi gives Sora a small Paopu Fruit Keychain for the Oathkeeper. That alone may have bonded them in a sort of spiritual sense, with the promise of seeing each other again after they were separated. Now in KH2 they're keeping to that promise, fight their way, etc. etc. and find each other and......who knows what would happen after that (if it even happens)
Still not too sure about the "May find the light within" part...maybe Kairi's role as a Princess of Heart may come up again... ::shrugs::
Moving on, does anyone think it might be referring to Sora and Riku? They were separated as well....