In a tea ceremony, a guest wears a sensu, a folding fan, as an indication of a guest. When a guest greets the host or the hostess, a sensu is placed in front, and then the sensu becomes a sacred barrier( Kekkai). The guest shows the modesty and respect by staying off the barrier. A sensu can be the boundary that ties daily life and the pure and sacred world of Tea. Therefore, please bring your sensu to a tea ceremony.