This little treatise, conceived in great simplicity, was not originally intended for publication. It was written for a few individuals, who were desirous of loving God with all their heart. Many, however, because of the profit they received in reading the manuscript, wished to obtain copies, and, on this account alone, it was committed to the press. // It still remains in its original simplicity. The whole is submitted to the judgment of the learned and experienced; requesting them, however, not to stop at the surface, but to enter into the main design of the author, which is to induce the whole world to love God, and to serve Him with comfort and success, in a simple and easy manner, adapted to those little ones who are unqualified for learned and deep researches, but who earnestly desire to be truly devoted to God. // An unprejudiced reader will find, hidden under the most common expressions, a secret unction, which will excite him to seek after that happiness which all should wish to enjoy.