Kasaidono was a devoted believer in Ritsu Sect of Saidai-ji Temple (Nara City) lineage, and received a strong moral impact from Zen and Ritsu Sect after she married Tokiyori.
葛西殿は宗教面において西大寺(奈良市)流律宗へ帰依し、時頼に嫁して禅・律宗などの法薫を受けた。