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   From the text...

   Nestorianism is a form of Christianity that extended to China and reached its peak during Tang Dynasty.

   In today’s perspective, it was a form of   “contextualization” since the Gospel and culture were connected despite the prevalence of Buddhism in China. 

   By looking into the application of Nestorianism  and to analyze why it ultimately failed will provide useful assets in considering contextualization. 

   There are several questions to be considered. Why has  Nestorianism as a form of Christianity during Tang Dynasty now disappeared?

   Was there a form of syncretism in the process of adjustment? Was there a possibility of theoretical problem during the formation of contextualization?

   These questions will eventually be beneficial for providing directions in the process  of contextualization while maintaining the identity of Christianity.