The walls of these houses represented walls of black magic that Milarepa has built in his subconscious. Black magic is the misuse of the sacred fire of the Divine Mother. Practiced in the past or the present, it is very binding, leaving distorted, out-of-alignment states and jagged lines of force. Milarepa had to be willing to tear down the walls of black magic and build again. While he was building and unbuilding, Milarepa was dismantling his electronic belt. The outer work was the sign of the inner work that was taking place.