Out of those three concepts, Durkheim focused on the sacred, noting that it is at the very core of a religion:They are only collective forces hypostasized, that is to say, moral forces; they are made up of the ideas and sentiments awakened in us by the spectacle of society, and not of sensations coming from the physical world.Durkheim saw religion as the most fundamental social institution of humankind, and one that gave rise to other social forms. It was the religion that gave humanity the strongest sense of collective consciousness. Durkheim saw the religion as a force that emerged in the early hunter and gatherer societies, as the emotions collective effervescence run high in the growing groups, forcing them to act in a new ways, and giving them a sense of some hidden force driving them. Over time, as emotions became symbolized and interactions ritualized, religion became more organized, giving a rise to the division between the sacred and the profane. However, Durkheim also believed that religion was becoming less important, as it was being gradually superseded by science and the cult of an individual.Thus there is something eternal in religion which is destined to survive all the particular symbols in which religious thought has successively enveloped itself.However, even if the religion was losing its importance for Durkheim, it still laid the foundation of modern society and the interactions that governed it. And despite the advent of alternative forces, Durkheim argued that no replacement for the force of religion had yet been created. He expressed his doubt about modernity, seeing the modern times as "a period of transition and moral mediocrity."