The mother of a prominent Chinese Christian human rights lawyer who disappeared following his arrest in August has written a heartbreaking letter to her son relaying her hopes for his mission and expressing her fear over the lack of information about his condition.



"Your lawyers and I don't have even the smallest bit of information about your situation now that you've been taken," she wrote in the letter translated and published by ChinaAid.



"These days, I am terribly upset. There is nothing in my mind except missing you. I want to control myself and my state of mind, but your shadow constantly appears before my eyes."



As reported by the Gospel Herald, Zhang Kai, who is from Beijing, was taken into custody in August while advising a church in Wenzhou, a commercial city commonly referred to as "China's Jerusalem" due to its large Christian population.



Over the past year, Zhang was helping members of the city's Christian community who have actively fought the Communist government's efforts to remove crosses from church rooftops and reduce the presence of churches in the area.



"Christianity teaches us to submit," Zhang said in July of his decision to help churches fight the government order, according to Initium Media. "But what we ought to submit to is the Constitution and morality, not to illegal people and conduct."

