Great attention has been paid to the development of ujidera during the middle ages as they aimed to make a transition from being the recipients of one-sided protection and assistance to achieve self-sustaining development while maintaining close relationships with clans and families.
一方的な保護・援助の対象から、氏や家との密接な関係を保ちつつ、存続と自立的発展を目的としており、氏寺の中世的展開として注目される。