Introduction
This article—drawing extensively on the research of Professor Oded Yisraeli—examines references to the mezuzah from both before and after the emergence of the Zohar in the late thirteenth century, in order to trace shifting cosmologies. To map these changing approaches, we shall examine successive periods of Jewish literature from the third century to our times, each marked by distinct emphases and developments in the evolving mystical cosmology of the mezuzah.

