Ключевые слова: abstract, analyze, angle, awareness, clarity, color, concept, contemplate, crystal, demonstration, education, examine, experiment, focus, geometry, glass, gleam, idea, insight, introspection, knowledge, learning, light, meditate, metaphor, optics, perspective, physics, ponder, prism, rainbow, reflection, refraction, science, self, shape, shine, sparkle, spectrum, surface, symbol, texture, theory, thought, triangle, understanding, vision, visual, wisdom,