Forgotten God (Holy Spirit)

Over the summer I read Francis Chan's book Forgotten God.  I do not plan to go through this post and describe everything that Chan talks about through his book, but I would like to first recommend this book for those who may find interest in what I have to say.

Francis Chan's main argument in his book is that Christians have focused so much on God the Father and Jesus Christ that we have totally forgot about the Holy Spirit's work in our lives.  I believe that some from my own denomination do not even realize the impact the Holy Spirit has on our very lives.  I have been wrestling with the question if the Holy Spirit is even to be one with the Trinity (God the Father, Son, and Holy Spirit) for how little it is mentioned in our postmodern society. 
Now, I am not saying that I have completely disregarded the Holy Spirit and its work in our lives.  But, I do believe that it has been neglected.
In the Biblical narrative, we find the Holy Spirit mentioned twice as key doctrinal points.  Acts 5:3-4 and 2 Corinthians 3:17 assert that "the Lord is that Spirit".  John Wesley asserted the Holy Spirit more than any part of the Trinity in his work on A Plain Account of Christian Perfection.  Wesley stresses the need for the Holy Spirits work in our lives as God begins to cleanse us back to His image.
I believe the Holy Spirit is necessary for this very purpose.  When Adam and Eve fell into sin by wanting to be like God (see Gen. 3), the Image of God (or Imago Dei) was ruined inside of us, and we all need to work of the Holy Spirit to cleanse our lives.  We, as humans, must be willing to admit our brokenness and and our need of God in our lives.  This is were God will then give us the grace we need and enter into our hearts to restore that image to His likeness.

Do not misunderstand me on this, I do not believe we become one like God and are not able to sin.  I believe that God restores our hearts so that we can communicate with God.  I also believe that the want to sin is not there.  We are still tempted by Satan and are still able to sin, however, our hearts want to serve God because of the Spirits entrance into our hearts.
This is why I believe the Holy Spirit is necessary for our lives.  Without the emphasis on the Spirit, communication and cleansing in our lives is not there!  Yes, Christ provides the way to God, and God the Father gives the grace so we can be His children, but it is the gracious gift of the Holy Spirit that we are able to listen to the Father calling out to us.