These private lessons took place during the course of Harry Potter's sixth year in 1996-1997 between him and the Headmaster of Hogwarts School of Witchcraft and Wizardry, Albus Dumbledore. The purpose of these lessons were to teach Harry about Lord Voldemort's past in an attempt to figure out how to defeat him, further discuss the prophecy that caused Harry's destiny, and unriddle an important secret of Voldemort's, guessed at by Dumbledore, that possibly involves Voldemort being immortal. The answers to these questions and mysteries were attempted to be found using the Pensieve, a memory-viewing device in which Dumbledore and Harry could delve into memories (sometimes of the Headmaster himself and sometimes belonging to others) that would help unravel the secrets involving Voldemort, his