Just as we need food and water to keep our bodies physically alive, so we need the inward renewal of the holy spirit in our hearts and lives. Romans 8.10–11. We have the spirit who raised Jesus from the dead. 2 Corinthians 4.16 – inward renewal day by day is ours. Our physical nature, our mental life, our emotional, intellectual and affectional facets of life are inseparable from the “spiritual” part of us.