Just who is the Holy Spirit really? What is He about? And how does He impact the life of a Christian believer? The work of the Spirit is celebrated throughout the Christian world. And rightly so. But too often that talk gets sloppy. The Spirit is reduced to anything in the Christian life that's spontaneous, informal or just weird! In this short and engagingly-written book, Orlando Saer takes us right back to the beginning to rediscover what the Spirit is about. He shines the light of the Bible itself into our confusion and leaves us overwhelmed with gratitude for this precious Pentecost gift.