Ok here what I got from it:

Foam man has a predetermined destiny foretold by the "paper fairies" he realizes today is the day to cut his chest out. While he does this he realizes it is not what he expected so decides so cut his leg off in a act of depression or possibly knowing it would end his chest piece, he then leaves to the woods and promises to never return. "Chest foam" see his little foam pieces and the paper fairies inform him to add water, he does so not knowing the consequences under the assumption that they are children. We slowly realize something is not right as they enter some doorway and soon afterwards become demented fork head foam people. Knowing this will be the end for him he decides so sacrifice his life with a request to the paper fairies to carry a note requesting foam man to return home to defeat the demented fork foams and given some type of magical key. Upon his arrival he sees the poor chest foam defeated with fork demons surrounding him. In the midst of a epic and grueling battle foam man sees his oppurtunity to use the key he was given, after using his key the fork demons are defeated and with the paper fairies rejoicing, they decide to grant him a gift and give him back his rightful body parts.

Just what I got from it, it varies I suppose.