Bamboo and a Sparrow by Kaō Ninga is a definitive work from the 14th century in the genre of suiboku-ga that represents Japanese ink painting during the early Muromachi era. It portrays a brief and tranquil moment in nature with the help of an image of a single, plump sparrow sitting tightly on a thin bending bamboo branch. This Buddhist priest-painter is known for his fast and spontaneous brush techniques. Instead of portraying objects realistically, the artist has used varying ink washes to portray the body of the sparrow while using black ink to depict only the bird's beak, wings, and eye. The element of yohaku (negative space) plays a vital role within the composition. This untouched background provides an enigmatic misty void around the image which compels the viewer to concentrate fully on the interplay between the bird and the plant. Bamboo symbolizes strength and flexibility whereas the plain sparrow is a symbol of joyfulness and existence in simplicity. In a form of parable, this work is a meditation on simplicity, becoming one of the most cherished ink paintings in Japan. The design makes use of the power of diagonal slope that compels the viewer's attention to shift towards the top-right corner of the painting. Everything else flows downward in the long scroll towards the area of unmarked paper. In this way, the viewer is made to move their eyes across the canvas. The sparrow sits in perfect position at the point of tension where the bamboo leaf and the twig meet. This is evident in the way Kaō manages to show the structural physics in the bend of the twig under the weight of the tiny bird.
Bamboo and a Sparrow is depicting a look at impermanence at mindfulness and way of finding deep meaning in simple things. Kaō Ninga paints in a simple style called suiboku-ga for removing all extra noise so that the eye can focus completely on the fragile bending bamboo and the small steady sparrow. The empty space, called yohaku creates a void feeling that feels like nature being still. The painting is a lesson that demonstrate the statement that just as the bamboo bends when a sparrow sits on it, the bamboo does not break. This further shows how resilience and flexibility can live and work together simultaneously. It reminds us that people, animals and nature can co-exist in harmony and tranquility.