We look at the Book of Acts of the Apostles - which is very inappropriately named - and how it tells us of the incredible missionary journey of the Holy Spirit.  We learn of the immensely deeper and inspiring sense that the earliest believers had of the Holy Spirit, compared to our modern notion.  We see that we do not have to wait for Jesus to return, as the Holy Spirit is already alive, within us.  We see just what the Holy Spirit can do to our lives.