Ключевые слова: alone, blue, book, boy, clouds, conservation, contemplation, contemplative, countryside, cover, ecology, empty, environment, environmental, field, future, grass, green, guy, horizon, landscape, lone, loneliness, man, meditation, minimal, minimalism, mood, nature, nothing, past, person, protection, relax, rural, sad, serenity, sky, square, still, stillness, stress, sustainability, sustainable, teenager, time, wait, waiting, young,