As the canvasser goes from place to place, he will find many who are sick. He should have a practical knowledge of the causes of disease and should understand how to give simple treatments, that he may relieve the suffering ones. More than this, he should pray in faith and simplicity for the sick, pointing them to the Great Physician. As he thus walks and works with God, ministering angels are beside him, giving him access to hearts. What a wide field for missionary effort lies before the faithful, consecrated canvasser; what a blessing will be his in the diligent performance of his work. CH 463.2