Moment From Harry Potter and the Order of the Phoenix

Possession
Voldemort tries to possess Harry , but Harry successfully fights him off
Returning for his fifth year of study at Hogwarts, Harry is stunned to find that his warnings about the return of Lord Voldemort have been ignored. Left with no choice, Harry takes matters into his own hands, training a small group of students – dubbed 'Dumbledore's Army' – to defend themselves against the dark arts.
Tags: prophecy, witch, loss of loved one, magic, child hero, dying and death, school of witchcraft, black magic, sorcery, supernatural, occult, mystical land, based on young adult novel