In 1968, Shimizu made the acquaintance of Tatsumi Hijikata, which was an important event in his life. In this year, Hijikata requested Shimizu to design a poster for Tomiko Takaifs Butoh dance performance in which he also danced. Butoh, created by Hijikata, is a dance which liberates the humanfs soul. According to Hijikata, Butoh urges us to recall the memory of when we were a fetus, and even after we die and go to the next world, it helps us to recall the memory.
Hijikata was also a person that awoke one of Shimizufs mysterious memories from his boyhood. One day during WW II, he was walking in a heavy snowstorm. He said that after having a premoniton of his death, he could not move forward any more. Suddenly, a man in a black mantle showed up and lifted young Shimizu into his arms. Shimizu says he felt as if Hijikata was the same person who helped him in that storm.
The poster for House of Mandara performance depicts a trout which captures thunder and lightning in the sky. (Mandara is a concentric diagram having spiritual and ritual significance in both Buddhism and Hinduism.) The thunder can be interpreted as Hijikata, and the trout as Shimizu.
In the composition, the trout seemingly fights against thunder and lightening. It also appears he wants to unite with them, and wants his soul to be elevated to a higher form.
Shimizu once said "when I watched his dance, I felt as if the nape of my neck was captured, and taken to the other world, or to the land of the dead." He also said "there is a true nature in Hijikatafs performance". A nature that shows its true appearance when one enters in it deeply could sometimes be a rapier which sharpens Shimizufs mind. He tries to approach the very limited boundary between this world and the other world and of nature and humanity as well.