Nihilism...
is a philosophical position which argues that the world, and especially human existence, is without objective meaning, purpose, comprehensible truth, or essential value. Nihilists generally believe all of the following: There is no reasonable proof of the existence of a higher ruler or creator, a "true morality" is unknown, and secular ethics are impossible; therefore, life has no truth, and no action is known to be preferable to any other.
Nihilism is often more of a charge leveled against a particular idea, movement, or group, than a position to which someone overtly subscribes. Movements such as Dadaism, Deconstructionism, and punk have been described at various times as "nihilist". Usually this simply means or is meant to imply that the beliefs of the accuser are more "substantial" or "truthful", whereas the beliefs of the accused are nihilistic, and thereby comparatively amount to "nothing".
Nihilism is also a characteristic that has been ascribed to time periods: for example, Baudrillard has called postmodernity a nihilistic epoch, and some Christian theologians and figures of authority assert that modernity and postmodernity represent the rejection of God, and therefore are nihilistic.
Prominent philosophers who have written on the subject of nihilism include Friedrich Nietzsche and Martin Heidegger. Nietzsche described Christianity as a nihilistic religion because it evaded the challenge of finding meaning in earthly life, creating instead a spiritual projection where mortality and suffering were removed instead of transcended. He believed nihilism resulted from the "death of God", and insisted that it was something to be overcome, by returning meaning to a monistic reality (he sought instead a "pragmatic idealism," in contrast to the prominent influence of Schopenhauer's "cosmic idealism"). Heidegger described nihilism as the state where "there is nothing left of Being as such," and argued that nihilism rested on the reduction of Being to mere value.
Nihilism and God is dead...
Nietzsche saw nihilism as the outcome of repeated frustrations in the search for meaning. He diagnosed nihilism as a latent presence within the very foundations of European culture, and saw it as a necessary and approaching destiny. The religious worldview had already suffered a number of challenges from contrary perspectives grounded in philosophical skepticism, and in modern science's evolutionary and heliocentric theory. Nietzsche saw this intellectual condition as a new challenge to European culture, which had extended itself beyond a sort of point-of-no-return. Nietzsche conceptualizes this with the famous statement "God is dead", which first appeared in his work in section 108 of The Gay Science, again in section 125 with the parable of "The Madman", and even more famously in Thus Spoke Zarathustra. The statement, typically placed in quotation marks,[1] accentuated the crisis that Nietzsche argued that Western culture must face and transcend in the wake of the irreparable dissolution of its traditional foundations, moored largely in classical Greek philosophy and Christianity.[2]