In a society obsessed with efficiency, we often divide tasks so strictly that we divide people. During a 4-day off-grid family camp, I witnessed the beauty of leaving things undefined. Away from digital noise, we navigated nature's ambiguity—where textbook "white and black" rules don't work. By sharing rich "Yohaku" (empty space), we could sense each other's presence and act autonomously yet as an organically connected whole. Any world is up to our mindset and action.