In his book of two parts Derek Prince deals with Baptism in the Holy Spirit and Living in the Fullness of the Spirit.

The baptism in the Holy Spirit is a topic of constant interest, debate and even controversy among Christians around the world. Derek Prince thoroughly examines what the Word of God teaches on the subject and explains both the nature and the purpose of the experience.

In the second part of the book Prince focuses on the Holy Spirit's role as a Guide and helps the reader learn how to be led by the Spirit, how to live in God's grace, how to cooperate with the Holy Spirit's working in our life and how to hear God's voice.