When Jesus was to depart and leave His Holy Spirit to be WITH the disciples, they were fearful & concerned. They did not realize that the power & presence of God would be with him forevermore. They were so accustomed to Jesus walking with them, that they thought He was leaving them for good.
But Jesus said it was better for Him to go and for the Spirit to carry them.
This book addresses the reason why the Spirit is what we need and how have everything we need to live for Christ & to grow in Christ. God is so good to give us His Spirit...and JD