Dr. Wilder will discuss the process in which the Israelities had to go to advance into the land that had been promised She will further liken their process to our own of erecting self-protective walls of various kinds intended for self-protection from many hurtful things/situations. These walls are called defense mechansims. They operate much life the walls erected around buildings and other properties. That is they keep causes of stress, anxiety, fear and pain(to name a few things) locked in while blocking what is needed from getting in.