Meiji Shrine
Arima entered the reserve list from April 1, 1922. From September 14, 1931, was named chief priest of the Meiji Shrine. On December 26, 1932, Arima was selected as a member of Emperor Shōwa's Privy Council. In 1934, he was chairman of the committee which organized the state funeral for Fleet Admiral Tōgō Heihachirō. His name was floated as a potential foreign minister in the 1938 administration of Prime Minister Fumimaro Konoe, but he did not serve. However, he maintained close personal ties to Emperor Hirohito and Empress Kojun, serving as a chamberlain from 1939, and resigned from his post as chief priest of Meiji Shrine from 1943.