Sometimes enemy pieces will get entombed, with pretty much 0 mobility. This is a great position for you. Many times that will technically mean that piece is useless and you will have a great position. It might mean you pretty much have a material advantage. Here is an example of an entombed piece
Entombing your opponent's valuable pieces can also be a good way to do it. It can trap your opponent's queen, maybe making the game a draw. You can also win by trapping their strong pieces and picking them off like this. Here is an example:Enjoy!