Just as the head leads the entire body, so too must the good resolutions and conduct one accepts on Rosh Hashanah lead the entire year.

198. Rosh Hashanah as the Head of the Year and Spiritual Growth ראש השנה כראש השנה והתפתחות רוחנית

251. The Head of the Year and Good Resolutions for Spiritual Growth ראש השנה והחלטות טובות לצמיחה רוחנית