Pien-wen can make a very positive contribution to the understanding of the development of Chinese literature. For example, my pienwen research into the meter of poetry and lyrics revealed that there was already a great change in the pien-wen poetry and lyrics of the Tang dynasty, which could be said to already be preparing the ground for the transformation of meter in the Sung ts'u.
變文對瞭解中國文學發展極具價值，比方我研究變文中詩歌的格律，發現盛唐詩歌格律在變文中已有很多改變，可以說，已表現出往宋詞過渡。