Healing is not just physical. It could be mental or spiritual. If he touched anyone's heart in a way that changed their lives, then that too was a miracle. Other people are more sceptical. Most of these preachers are crooks.
Some preachers pressurise their followers to give large sums of money.
Ruheri attributes the miracles to the strength of people's own convictions. There is a kind of fanatical belief. If someone completely believes, he can easily be conned. Ruheri is frustrated that more and more people are turning to religion to solve their problems.