According to Osho, Mahavira left not to escape a physical house but to step beyond the narrow walls of mine-ness that make life stale and divided. Home and outside are one vastness; attachment carves boundaries and breeds suffering. By moving into the open sky of non-possessiveness, he entered a bigger home, the whole existence, where the line between inside and outside disappears and freedom becomes possible.
He left to drop the “this is mine” feeling and live in the big open home of everything, where he could be truly free.