First, if you are seeking to understand the Person of Holy Spirit and desire to encounter Him beyond the contemporary explanations of experiences offered through Protestant practices this is a timeless treasure. Second, the Lord has always deposited certain books into my life that have had and have retained the providential aroma of His mercy and grace. This is yet another I claim with confidence.
What an inviting and invigorating work by Father Raniero Cantalamessa. His expert study of Holy Spirit and His relationship with God the Father, and His Son, Jesus Christ is a well balanced approach to educate and inspire the Christian to better understand what is offered through a deeper relationship and appreciation with Holy Spirit.
This book is reminiscent of the works by the eastern Mystics, such as Watchman Nee, but in a more westernized approach. It is clear and down to earth theology that maintains the awe that should a company such content. Father Cantalamessa offers a great exposition of the Latin hymn Veni Creator -- "With its wealth of insights and though-provoking images, this hymn (Veni Creator) is like a magnificent fresco of the Holy Spirit at work in salvation history and in the life of the Church."
It is a must read for any Christian who seeks to dwell in the secret place of the Most High through contemplative prayer and surrender to the Lords presence.