Original: Individual songs from some of the operettas have become standards , notably '' Vilja '' from The Merry Widow and '' You Are My Heart 's Delight '' ( '' Dein ist mein ganzes Herz '' ) from The Land of Smiles ( Das Land des LÃ chelns ) .
Simplified: Some of the songs from his operettas have become very well-known , especially '' Vilja '' from The Merry Widow and '' You Are My Heart 's Delight '' ( '' Dein ist mein ganzes Herz '' ) from The Land of Smiles .