Musō Soseki's Bamboo Brush Cup

Origin
Musō Soseki, was a Rinzai Zen Buddhist monk and teacher, and a calligraphist, poet and garden designer. The most famous monk of his time, he is also known as Musō Kokusha, a honorific conferred to him by Emperor Go-Daigo. His mother was the daughter of Hōjō Masamura (1264-1268), seventh Shikken (regent) of the Kamakura shogunate.

His cup brush became imbued with the power to extract thoughts.

Effects
When drunk from the cup, the victim's thoughts literally spill onto paper in written word. Unfortunately, the thoughts that spill from the mind of the user are not copies, but the actual thoughts and memories themselves, leaving the mind completely.

Often rendering the person mentality unstable due to thought loss.

Collection
This artifact was collected by a regent of Warehouse 10 around 1640.