Zen Staff 

"Zen Staff" is a sumi-e ink painting by Japanese artist Nakahara Nantenbo (1839-1925). The piece features a single, bold black line that appears to be a staff or stick, evoking a sense of movement and energy. The painting is a powerful example of the calligraphic style of sumi-e, which emphasizes the artist's brushstrokes and the expressive qualities of ink. The Zen staff is likely a symbol of strength and perseverance, themes commonly explored in Japanese art.