For all those who strive to mold the spirit, the ultimate training guide is here: reedited, reset in vocalized Hebrew, and an English text on facing pages. In 1898, Rabbi Yosef Yitzchak, who would become the sixth Lubavitcher Rebbe, compiled this treatise at the behest of his father, Rabbi Shalom DovBer, for use by the first counselors at the first Lubavitch yeshiva, Tomchei Temimim. Within this volume are the practical, spiritual steps a teacher must take to move beyond being a transmitter of intellectual ideas to becoming a developer of character. Captivating Chasidic stories and Rabbi Yosef Yitzchak's own poignant personal remembrances of incidents that played a vital role in his education round out this thought-provoking publication.