Ключевые слова: 3d illustration, boulder, burden, business, challenge, concept, conceptual, determination, difficult, difficulty, effort, energy, hard, heavy, hill, man, metaphor, mountain, moving, mythology, obstacle, persistence, person, power, pressure, punishment, push, pushing, rock, roll, rolling, silhouette, sisyphean, sisyphus, sky, stone, strength, strong, struggle, stubborn, stubbornness, success, sunset, target, task, up, uphill, work, worker,