List to this article that appeared in the Moody Monthly-
An oyster fisherman on opening the shell of an oyster, discovered within a fish, three and a half inches long, alive and weakly struggling. The oyster, however, was not to be found, and the fisherman was quite convinced that the fish had entered the open shell, and had been trapped by its closing. Once inside, however, it proceeded to devour the oyster, but being unable to open the shell, would have died I it.
Sin enters the life through the door of a careless will. Once thus inside, their eviction is most difficult, and they speedily make themselves master of the premises, eventually destroying the whole life of the individual.