What Is It to be Sealed With the Spirit?

Ephesians 1:9-14; Romans 10:14-17

The child of God is blessed with all spiritual blessings in Christ.  It doesn't matter whether the child of God feels or understand the blessings or not, Christ hath blessed us V3 "Blessed be the God and Father of our Lord Jesus Christ, who hath blessed us with all spiritual blessings in heavenly places in Christ."  Its something that Christ has done and we don't do it.  We are blessed in mind-blowing ways, in that we have been chosen in Christ from before the created order, we are blessed in that we are chosen to be holy and blameless before God.  In that we are adopted as God's beloved children and we are blessed in that it has been predestinated that we would inherit the inheritance of Christ.  We are blessed in that by grace we have been made acceptable in the presence of God, in that we have been bought by the blood of Jesus, all our sins are forgiven.  What blessings.  To do these things for us, God has abounded in his mercy and grace.  And more than that God has illuminated the saved, revealed his will to us and also the true believer has true unity in Christ presently.  One in Christ.  The body of believers is united.  We have been predestinated to bring God praise and glory.  

Another blessing is after we believed:  the sealing of the Holy Spirit.  Christ's people are sealed with the Holy Spirit.  V12-14 "That we should be to the praise of his glory, who first trusted in Christ.  In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory."
 
You trusted when you heard the gospel, you were sealed after you believed, and what is it to be saved by the Holy Spirit?