That phrase.... I think it is said by Sora. Now don't mock me if you think i've got this wrong, but here's my theory. I think sora will turn to the darkside in KH2, and the glowing eye unknown will be sora. when one day kairi will come and meet him and remind him of his light, and as in KH1, sora said kairi was his light, sooo, sora sais then: Everything is coming back to me...the true Light, then turns back to be on the good side.