What characterized the paganism from which the Galatians were transformed?

Les explains that the Holy Spirit ministered to the Galatians and worked miracles among them, and the question is whether this came by the works of the Law or by the hearing of faith. Under the Law they could perform no miracles; it was impossible. But when the Holy Spirit activated the hearts and minds of those pagan Galatians and others throughout the Roman Empire, it was a miraculous transformation from paganism with all its excesses, idolatry, and immorality. They stepped out into a whole new lifestyle, which is a miracle in itself. Les notes that in the early church there were no doubt other manifestations of the miraculous, though Paul does not explicitly delineate them. The same question remains: if you have witnessed a miracle, was it through keeping the Law or through the manifestation of the Spirit activated by faith? Les emphasizes that we are not under Law but under grace, and we come under grace and out from under the Law by faith, plus nothing. This is the whole theme of Galatians: do not be suckered into a works religion, but maintain that we are saved by grace through faith, plus nothing.