Senses
人去楼空/ 人去樓空 deserted
The occupants have gone and the building is empty
人去楼空/ 人去樓空 vanished
The people have left and their whereabouts are unknown, as when a suspect has fled before police arrive
人去楼空/ 人去樓空 nostalgic
The feeling of loss when visiting old haunts where friends are no longer present, especially when old sights recall the memory of lost friends