What does the visitor to the Three Jolly Bargemen want to communicate to Pip about?

The visitor, Mr. Jaggers, has come to buy Pip's apprenticeship from Joe, and to advise Pip that he is coming into a great fortune.

“I am instructed to communicate to him,” said Mr. Jaggers, throwing his finger at me sideways, “that he will come into a handsome property. Further, that it is the desire of the present possessor of that property, that he be immediately removed from his present sphere of life and from this place, and be brought up as a gentleman,—in a word, as a young fellow of great expectations.”