fort; stronghold; fortification
fortress; stronghold; citadel
fortifying; fortification
mountain stronghold; den of mountain bandits
the future is unpredictable; inscrutable are the ways of heaven; the irony of fate
inscrutable are the ways of heaven; fortune is unpredictable and changeable
traveler's guardian deity (traveller)
impregnable fortress; heavily guarded fort
frontier fort; remote area; frontier
outside a fort; outside the Great Wall of China
inside a fort; (area) within the Great Wall of China