I have no personal dealings with the underground church in China so I have only heard and read about stories. However, from what I have heard there is plenty of miraculous things happening in the underground church. Many are very strict and legalistic by western standards but the power and presence of the Holy Spirit is there in healings and other miracles.
If there are outward obvious “Miracles” they are not made
known as such.
I, like them, have experienced many “miracles”, but even
though the person(s) were virtually brought back to life, this could not be
scientifically shown to be outside of natural means. By Faith I know God’s hand was involved.
There are lots of good practical logical reasons
why miraculous healings are not touted among the nonbelievers in China. The nonbeliever will have little if any
contact with the church meeting prior to becoming a baptized believer out of
protection for him and the little home church (if the nonbeliever without the
power of the indwelling Holy Spirit is interrogated by the Government, he can
only tell them about his Christian friends and not where the church
meets). These Home churches are not
trying to bring attention to their meetings, but are training others to lead
nonbelievers to Christ one on one.
Really bring attention to Christ living in them.