The relevance of the research. The various approaches are analyzed on the essence of nostalgia, ranging from psychological understanding of this phenomenon as emigrant`s neurosis and mental illness to a more profound comprehension of it as a cultural and philosophical “universalia” that concerns complicated mechanisms of historical memory, identity, time and eternity. Analysis of research and publications. Among contemporary researchers investigating the ethical, religious and cultural-historical dimensions of nostalgia, there should be mentioned S. Boim, F. Davis, S. Merzlyakov, V. Nurkov, (...) Y. Davydov, E. Loftus, O. Fedkov, M. Rewakowicz, M. Shkandrij, M. Boichenko, O. Yakovleva, V. Liakh, E. Novikov and many others researchers. The purpose of the paper is to examine the ethical and religious dimensions of nostalgia, to figure out the connection of nostalgia with the problems of memory, time and eternity. Presentation of the main research material. The article deals with the cultural phenomenon of nostalgia, its religious, ethical and general philosophical aspects. It is shown that nostalgia is based on memory value selectivity, due to which a moral tradition, social and individual identity, and the continuity of generations are established. Modern man rebels against the actual state of being as untrue and non-authentic. He feels nostalgia for the past as something right and proper. A person not only mythologizes, but also seeks to resurrect the past in a symbolic way. In this almost religious faith in the resurrection of what is gone there is an existential certainty for the final cancellation of time and triumph of eternity, within which everything is preserved and nothing is forgotten. Nostalgic lust for the past is inherent to humanity throughout its history and is especially actualized in the culture of postmodernism. Conclusion. Nostalgia is a kind of personal and social myth creation, the construction of the historical identity. It reconstructs the past, which appears not only valuable and significant for the present, but also proper. Nostalgia is a moral phenomenon based on a morally healthy memory, capable of forgiveness, reconciliation and love for one's own destiny. The attention is stressed on metaphysical, political and aesthetic forms of nostalgia that oppose destructive force of nihilism. (shrink)