Calvinism on the Holy Spirit

Prayer, especially when public, may never be ecstatic.   If vocal, it is to be expressed only "in a known tongue.    For God is to be worshipped everywhere in spirit and in truth.  

What, then, are the benefits which in this life do accompany or flow from justification, adoption and sanctification?    Such are: the assurance of God's love; peace of conscience; joy in the Holy Ghost; increase of grace; and perseverance therein — till the very end of our earthly life.