Peregrination : a journey, especially a long or meandering one — also a pilgrimage.
Age is a constituent part of the subject who writes … that midway point clearly isn’t mathematical: for who could calculate it in advance? It relates to an event, a moment, a change experienced as meaningful, solemn: a sort of ‘total’ realization of precisely the kind that determine and consecrate a journey, a peregrination in a new continent … Now, for my part, although I’ve gone far beyond the arithmetical middle of my life, it’s today that I’m experiencing the sensation-certainty of living out the middle-of-the-journey, of finding myself at the kind of juncture … beyond which the waters divide. (emphasis in original)
Barthes, Roland (2011) The Preparation of the Novel: Lecture Courses and Seminars at the Coll̀ége de France, 1978–1979 and 1979–1980, trans. Briggs, Kate. New York: Columbia University Press.