A common belief among the New Age is that humanity has entered, or is coming to enter, a new period known as the Age of Aquarius, which Melton has characterised as a "New Age of love, joy, peace, abundance, and harmony[...] the Golden Age heretofore only dreamed about." In accepting this belief in a coming new age, the milieu has been described as "highly positive, celebratory, utopian", and has also been cited as an apocalyptic movement. Opinions about the nature of the coming Age of Aquarius differ among New Agers. There are for instance differences in belief about its commencement; New Age author David Spangler claimed that it began in 1967, others placed its beginning with the Harmonic Convergence of 1987, author José Argüelles predicted its start in 2012, and some believe that it will not begin until several centuries into the third millennium.