"The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth" (John 3:8)
One meaning of the word "power" is "ability to do." There precisely is the wonder of the Spirit's work in the Church and in the hearts of Christians. His sure ability to make spiritual things real to the soul.
This power can go straight to its object with piercing directness; it can diffuse itself through the mind like an infinitely fine volatile essence securing ends above and beyond the limits of the intellect.
Reality is its subject matter, reality in heaven and upon earth. It does not create objects which are not there but reveals objects already present and hidden from the soul.
It actual human experience this is likely to be first felt in a heightened sense of the presence of Christ. He is felt to be a real Person and to be intimately, ravishingly near. Then all other spiritual objects begin to stand out clearly before the mind.
The Holy Spirit creates in us a new life and a new set of spiritual senses altogether, through which we discern, understand, and enter into the life of God and the spiritual realm.
~A. W. Tozer~