His native name was Kai-Sa (Red Moon); he is also known as Percy Sandy Tsisete.

[1] After moving to Taos, Kai-Sa met Helene Wurlitzer, a philanthropist who supported the work of numerous artists in New Mexico.

[4] The primary subject matter of his paintings were ceremonial rituals within Native communities, including Zuni, Taos, Apache and Navajo cultures.

[3] He is known for his watercolor and gouache paintings of Kachina entities and dancers, and for his murals at the La Fonda Hotel in Taos, New Mexico,[3][5] and at the Black Rock School and Black Rock Hospital in New Mexico.

[3] Kai-Sa was seriously injured in an accident in 1959, which periodically impaired his ability to paint, although he continued to exhibit his work.