Once you have invited Him in, the Holy Spirit can speak to you. The most common way He does this is in a small quiet voice (1 Kings 19:12). I heard from Him in this way for years and didn’t know what was going on (See “Angels Believe in You,” it’s FREE). After I came back to God and asked Him into my life, the voice inside my head – some would call it our conscience – seemed to get really smart. Everything it said would come to pass.
