You need to view all of the images relating to this sculpture to get a "feel" for it.

Peter Tilley has created a sculpture about a journey through life's obstacles. Although I can't speak for the subject of the sculpture, mine (and I suspect yours) has had a few more than these ones.

Nonetheless, it's a sculpture that can make you think, if you be so inclined.

Addendum: My personal opinion is that Facebook is a sociopathic organisation that steals other peoples' intellectual property (including the images in this gallery) despite being explicitly denied permission to do so.