a man walking on a tightrope in a mountain landscape at sunset or sunrise (resilience, flexibility)

tightrope tight rope walking challenge thin stretched acrobat acrobats circus cord wire gymnast athlete arieliast trapeze artist stunt difficult difficulty hard tough rigorous demanding arduous exhausting harsh strenuous balance equilibrium ropedancer high altitude metaphor man mountain mountains sunset sunrise silhouette landscape fear fearful resilience resilient flexibility flexible toughness