Ключевые слова: alone, ancient, ancient human, anthropology, archaeology, cave, caveman, dawn, discovery, dwelling, early man, evolution, exploration, fire, historical moment, history, humanity, hunter, inner peace, light, light source, lonely, man, meditation, natural light, nature, prehistoric, prehistoric man, primal, primitive, primitive life, reflection, rock, rough, rugged, shelter, sitting, sitting man, solitude, stone age, stone shelter, stone tools, survival, thinking, wild, wilderness,