Question: what does it mean when snape and lily have the same patronus?
Answer: Severus Snape's Patronus was also a doe, which symbolized his love for Lily. Snape uses his doe Patronus to show Dumbledore that he never fell out of love with Lily, his childhood best friend. ... Snape's doe Patronus reveals his one true motivation throughout Harry's life: to protect the child of the woman he loved.