Despite the rapid growth in converts, Joseph Fielding was frequently disappointed with his own performance and sense of weakness. He felt that the Lord would never make much of him, yet was determined to keep him humble. At other times, however, his diligent service resulted in feelings that he was blessed with both an increase in faith and an enlargement of the mind, "it is evident that I am most pleasing to the Lord when I am most engaged in the work," he confided to his diary.