Déjà vu

Déjà vu literally meaning “already seen”, is the phenomenon of having the strong sensation that an event or experience currently being experienced has already been experienced in the past. The experience is usually accompanied by a strong sense of familiarity and a sense of eeriness, strangeness, or weirdness. The “previous” experience is usually attributed to a dream, but sometimes there is a firm sense that it has truly occurred in the past.