Chuka means edict but it also means engraved. This Parsha refers to all of Judaism as “Chuka” to underscore the level of service and connection associated with Chakika. There are three levels: 1) תורה שבעל פה which remains separate from the person even after he learns it. 2) תורה שבכתב which is initially separate but it joins in an inseparable way, 3) אותיות החקוקות על הלוחות that join together as though they were never separate. The difference between the first and second לוחות. The Maamar explores the inner significance of Mitzvos on this level and the physical reward we get for them.