Questions about the four species of the lulav, and why does it say that specifically this mitzvah is "for you" - לכם | Deeper explanation of "הבדילו לעצמו", relating to before the צמצום (contraction/concealment) | עצם האור - the essence of the external energy, and התפשטות האור - the extension and revelation of that energy | In every המשכה there are two stages - the essence which is above revelation, and the extension - the revelation | The meaning of "Before creation (tzimtzum) there was Him (עצם האור) and His name (התפשטות האור)" | meaning of "אתה הוא הוי' לבדיך" | In the revelation of the light there are two stages: פנימיות אור - revelation to self, חיצוניות האור - actual revelation towards the "outside" | Quote from Eitz Chaim - טרם שנאצלו הנאצלים . . היה אור עליון פשוט ממלא כל המציאות • Link to view this page of the maamar: www.hebrewbooks.org/pdfpager.aspx?req=31640&st=&pgnum=34 •