The Christian looks forward to a new heaven and earth

"What ails a believer to groan so oft and so deeply? It is to be in heaven with the Lord. And the more heavenly and holy a Christian be, the more frequent and earnest are these groanings. He hath the most healthy soul, who is sick of love: whose heart is sick with desires of being present with the Lord. The believer that is most assured of heaven, groans deepest." - Robert Trail, Sermons Concerning the Throne of Grace, pg. 176