I like this idea – Beltainefaerie's Flights of Fancy

the-7-percent-solution:

So Eurus is Sherlock’s Emelia Ricoletti – Eurus is the embodiment of sins from his past coming to haunt him. She is cruel, calculating; she is a machine. This is who he was, who he’s always trying to be, even though his emotions constantly betray him. He conjured her the same way he conjured Emelia. Sherlock could’ve been a well-adjusted adult if he didn’t spend all that time being the calculating machine. His choices, his sins from his past, are personified in Eurus, if series 4 is mind palace. But even her cold demeanor was just a front for a scared, lonely genius. My god, LET SHERLOCK BE HAPPY, YOU MONSTERS.