Nethersphere The Nethersphere , also known as the Promised Land or Heaven , was a virtual reality housed within a matrix data slice — a Gallifreyan hard drive — used by to upload the mind s of the recently deceased , changing and rewriting them , removing their emotions before re - downloading them into their Cyber - converted bodies . ( TV : " Dark Water " ) The Half - Face Man said he was trying to reach the Promised Land . Its existence was denied by the Twelfth Doctor . When the Half - Face Man died after having been impaled upon the spire of Big Ben , he was transported to a lush garden where he encountered Missy . She said that he had " made it " and that he was in " the promised land " — or , as she also called it , " paradise " . ( TV : " Deep Breath " ) Later — as from the Doctor ' s perspective — the mind of a soldier from the " Aristotle " was transported to an elegant tea room , where she , too , encountered Missy . ( TV : " Into the Dalek " ) Later still , the Doctor discovered that a ship of robots that had crashed in Nottingham of about 1190 had a programmed destination of " the promised land " . ( TV : " Robot of Sherwood " ) A police man named Matthew in Shoreditch in Clara Oswald ' s home time , having been killed by a Skovox Blitzer , arrived in an area of the Nethersphere resembling an office , meeting a man called Seb . Seb worked for Missy , who was busy at that moment , and mentioned that the place was known by several names , including the Nethersphere . ( TV : " The Caretaker " ) A man was uploaded to the Nethersphere at the same time as Danny Pink . ( TV : " Dark Water " ) After Danny Pink was hit by a car , he found himself sitting in an office in the Nethersphere , Seb came in and offered him coffee , then he told Danny that he was dead and began to fill out a form . Later , Danny was told by Seb that someone had requested to see him and a meeting had been arranged , a young boy came through the double doors , Danny tried to talk to the boy but he ran off . Danny was told by Seb that he had a call for him , from the other side . The caller was Clara Oswald who asked Danny questions that only he would know the answers to , but he was unable to remember . He just kept saying , " I love you " , which angered Clara . She offered to join him in the Nethersphere if he could prove he was Danny but he protested as there was only one way to do that — die . When Danny said , " I love you " , yet again , Clara said that if he said it one more time she would end the call , so he did to stop Clara from killing herself to be with him . Danny began to cry , at which point Seb told him there was something they could do about his emotions , handing him an iPad which displayed a delete button on the screen with Danny Pink displayed above it . Danny hovered his finger over the button , only stopping once he realised the boy he had killed was behind him . ( TV : " Dark Water " ) Danny chose not to delete his emotions and watched with Seb as everyone was downloaded back into their bodies . Seb explained that the Nethersphere was just a cool name that they came up with . As the Doctor survived falling to his death , Seb and Missy watched , however Missy disintegrates Seb after tiring of his excitement . After destroying himself and the other Cybermen , Danny returned to this world but possessed Missy ' s bracelet which would allow him to return to the real world , alive . Two weeks later , he contacted Clara , telling her the Nethersphere was dying and as the bracelet only had enough power to send one person back , resurrected the boy whom he killed . ( TV : " Death in Heaven " )