IT'S A METAPHOR.

Just A tad bit excited for this film..the book was absolutely incredible. “Sometimes, you read a book and it fills you with this weird evangelical zeal, and you become convinced that the shattered world will never be put back together unless and until all living humans read the book. And then there are books like An Imperial Affliction, which you can't tell people about, books so special and rare and yours that advertising your affection feels like betrayal” ..since the film is coming out the whole world practically knows about the book..so i thought hey, might as well post it on my blog. But, please PLEASE don't be that person who sees the movie before reading the book.

― John Green, The Fault in Our Stars