This Severus Snape fan art contains
fire, fire, flames, and inferno.
There might also be
sunset, sunrise, fireplace, hearth, open fireplace, anime, comic book, manga, and cartoon.
Ok, so I found this Music-Video a couple years ago, and well... take a look for yourself.
If this does not strongly recemble a young Severus lovesick for Lily, then I don't know what to belive in.