It's about someone (presumably a guy, since Selene is a female) who dreams about a girl every moment awake, longing for a chance to get to love this person - and most likely thinking this desired romance is the meaning of his life. Realizing the dream doesn't seem to be coming true, he feels lonely. The reason as to why the love cannot happen isn't clear; it could be outer circumstances - or he just does not posses the courage to actually approach the girl with his feelings. The second line implies that she actually does like him back ("Dressed in the whitest silver you'd smile at me"), but for one reason or another he can only dream about her.
It's about someone (presumably a guy, since Selene is a female) who dreams about a girl every moment awake, longing for a chance to get to love this person - and most likely thinking this desired romance is the meaning of his life. Realizing the dream doesn't seem to be coming true, he feels lonely. The reason as to why the love cannot happen isn't clear; it could be outer circumstances - or he just does not posses the courage to actually approach the girl with his feelings. The second line implies that she actually does like him back ("Dressed in the whitest silver you'd smile at me"), but for one reason or another he can only dream about her.