In Hinduism, Avatar or Avatāra (Devanagari अवतार, Sanskrit for “descent” [viz., from heaven to earth]) refers to a deliberate descent of a deity from heaven to earth, and is mostly translated into English as “incarnation”, but more accurately as “appearance” or “manifestation”.
The term is most often associated with Vishnu, though it has also come to be associated with other deities. Varying lists of avatars of Vishnu appear in Hindu scriptures, including the ten (Daśāvatāra) of the Garuda Purana and the twenty-two avatars in the Bhagavata Purana, though the latter adds that the incarnations of Vishnu are innumerable. The avatars of Vishnu are a primary component of Vaishnavism. An early reference to avatar, and to avatar doctrine, is in the Bhagavad Gita.
In a 2007 interview with Time magazine, director James Cameron was asked about the meaning of the term “Avatar“, to which he replied, “It’s an incarnation of one of the Hindu gods taking a flesh form.” On the specific reason for the choice of blue as the Avatar’s skin color, Cameron said “I just like blue. It’s a good color … plus, there’s a connection to the Hindu deities, which I like conceptually.