A portion of a letter by Henry Venn, Church of England minister, to James Kershaw, September 7, 1771:
Twenty years ago I was accustomed to solitude; and I believe no one was ever happier in it. Though I was then seeking to enter into life, by keeping the commandments, yet do I still remember the hours of delightful devotion, the earnest supplications I was offering up for a heart dead to every thing but God. I am sometimes wondering how I could be so blind, and yet so comfortable; and am myself a witness, what pains a man may take to go to heaven, and yet be quite in the dark.
Letters of Henry Venn, by John Venn, first published in 1835, republished by the Banner of Truth, 1993, pp. 187-88.