He gives effort to show extremely expressing formality about white color and air through work. His work is far, broad, deep, and difficult because he has pursued the echo of cosmic perception from his early days. Bokijae of ancient times determined anonymous sky and ground as source of recognition, and made basic symbol emblem as drawing a line in the sky of empty like Taegeuk of national flag of Korea. He has employed his artistic indication from attitude, which conveys the representative symbol of quickening perfection from vibration of Biui, which has conceived from the ancient times. Therefore, his early works of 10 years ago occurred extraordinary attention which has kept until now.