The Elements of Harmony are six supernatural artifacts representing subjective aspects of harmony. The narration during the prologue of Friendship is Magic, part 1 describes the Elements of Harmony as “the most powerful magic known to ponydom”. The Elements of Harmony are first mentioned in the first episode’s prologue. The narrator tells that once upon a time, the sisters Princess Celestia and Princess Luna co-ruled the land of Equestria. At the beginning of the Summer Sun Celebration, Princess Celestia goes missing and Nightmare Moon shows herself, declaring her return.
Twilight discovers that the Elements of Harmony, the only source of magic that could possibly defeat Nightmare Moon, are located in the ruins of the “ancient castle of the royal pony sisters” in the Everfree Forest. When all seems lost, Twilight realizes that her friends embody the Elements themselves. As she describes how each friend represented an element, the shattered orbs turn into gem-studded necklaces that link themselves around the ponies’ necks. Twilight herself represents the element of magic, which only appears when the other five elements are present. It should be noted that the Elements of Harmony appear different in the prologue and the scene where the friends use the elements.