Enso 

"Enso," by Enji Torei (1721–1792), is a classic example of Zen art. The artwork consists of a single, bold black circle drawn with a brush on a white background. The circle, known as an Enso, represents enlightenment, strength, and the universe. The calligraphic inscription to the left of the circle is a poem, further enhancing the artistic and spiritual significance of the work. Enso paintings are a popular form of Japanese calligraphy and are often used in meditation and mindfulness practices.