Yume de takaku, tonda, means: " I flew so high, in my dreams", or vise versa. "Karada wa donna, huan, matottemo huriharatteku" means: : My body/soul shakes off any regrets/sadness" "Nemuru chiisana omoi, hirogaridashite" means: "My sleeping thoughts start to spread" "Kizuku yowai watashi, kimi ga ireba" is close to: "I noticed my weak self, but with you. " and "Tsuyoku ireta" will be "I was able to be strong" Finally, " Nagai yume miru, kokoro wa sou eien de" means, " My soul/heart, dreams, yes, forever. " I hope this made some sense! I really love this song, and also Sword Art Online!