I have heard Oprah say in interviews that she believes in a heaven. Good I say...unless she has changed her mind since then.
People make the mistake that because God imparts His Holy Spirit to us that we become gods too, like Him. Some believe we are only demi-gods under God's authority.
I believe we as Christians are given authority here on earth...in Jesus name....but we do not receive all of our heavenly rewards until we meet Him face to face.