Cruso's Island

Do not read if you have not read Parts 1 and 2 of Foe.  When Susan Barton gets shipwrecked on this random island she finds Cruso and Friday.  One of the most puzzling things Barton discovers is that Cruso has no will to leave the island.  Cruse does not try to find a way off the island, but just accepts that this is where he wants to be.  Barton brings up the idea of making a boat and trying to sail to civilization, but Cruso does not find value in leaving.  He tells himself that these other places are not as good as the island.  I then asked myself, as Barton did, why someone would want to live on an island away from everyone else.  I then realized that Cruso has something on this island that can only be found on this island.  This island fills in a missing part of him and that feeling of being whole keeps Cruso on the island.  I do not know what that missing part of Cruso is, but I understand the feeling he is getting.  This is very similar to the show Lost.  There were a couple characters that never wanted to leave the island because the island was providing them with something that they could not get anywhere else in the world (just like Cruso).  Susan did not get that feeling from this island, but Cruso did and it is hard for Susan to understand Cruso’s logic.  Susan wants to leave, so she can live her life, but Cruso wants to stay, so he can live his.