Mircea Eliade

Mircea Eliade was a Romanian historian of religion, fiction writer, philosopher, and professor at the University of Chicago. One of the most influential scholars of religion of the 20th century and interpreter of religious experience, he established paradigms in religious studies. His theory that hierophanies form the basis of religion, splitting the human experience of reality into sacred and profane space and time, has proved influential. One of his most instrumental contributions to religious studies was his theory of eternal return, which holds that myths and rituals do not simply commemorate hierophanies, but actually participate in them.

Read more on Wikipedia