He Yan's commentary was eventually displaced as the definitive, standard commentary by Zhu Xi's commentary. Zhu Xi's work also brought together the commentaries of earlier scholars (mostly from the Song dynasty), along with his own interpretations. Zhu's work took part in the context of a period of renewed interest in Confucian studies, in which Chinese scholars were interested in producing a single "correct" intellectual orthodoxy that would "save" Chinese traditions and protect them from foreign influences, and in which scholars were increasingly interested in metaphysical speculation.