Abstract: The subject of this research is evolution of the idea of all-encompassing unity, while the object is the forms of the idea at different stages of civilizational development (mythology, philosophy, art, mass culture). The author examines the transformative potential of the idea of all-encompassing unity and its special importance under the conditions of elevation of the global problems. The history of this spans several centuries, which testifies to its universality and exceptional value for the humanity. The article underlines that actualization of the idea of all-encompassing unity takes place in crisis, transitional eras. Analysis of the mythological, philosophical, and literary sources allows making conclusion about the panhuman importance of the idea of all-encompassing unity, as well as reveal its constructive potential. The scientific novelty lies in argumentation of the following position: new forms of the idea of all-encompassing unity emerge during the crucial stages of cultural development, change of paradigms, systems of values, and types of culture.