Jesus revealed to the Samaritan woman at the well that "God is spirit." Even though we may project onto God human-like characteristics, of course God is spirit. As curious Christians who incline to believe in the Holy Trinity, how do we understand the difference between God is Spirit and the Holy Spirit? If God is spirit, what is the need for another kind of Spirit? What does the Holy Spirit do? How does the Holy Spirit act in our lives? This book is designed as an eight-week adult study group to stimulate engaging conversations in understanding the Holy Spirit. Each chapter begins with discussion starters to kindle the conversation. Then, reflections are provided as background information. A helpful Appendix offers resources for basic questions to consider in bible study and a fast facts chart to understand the Authors of the Gospels and how they differ from one another.