As he recommended Keien to drink milk on September 10 just before Keien died, he respected Keien throughout his life, and many references to Keien are found in his diary "Shoyuki."
死の間際の8月23日には牛乳の服用を勧めるなど生涯にわたって崇敬しており、彼の日記『小右記』には慶円の記事が多数見られる。