Understanding the Parsha according to the Rebbe ממ"ש
QUESTION: The command “to walk in His Paths” (ללכת בדרכיו) seems to be a general command. What is special about this mitzvah that confirms its listing as unique Mitzvah?
ANSWER: Angels are considered as if in a constant state of “standing” (thus, only one leg), they cannot change or advance. People are considered “goers” (thus, people have two legs). We are mobile and can change and advance in spiritual levels. It is possible for us to perform a mitzvah and to remain stationary - finding oneself in the same state as before. However, this mitzvah of “walking in His path” is unique since it propels the individual into motion, to leave the previous station and go to a higher spiritual rank. Thus, this action is listed as a particular mitzvah. )1130 'עמ ,דלקוטי שיחות כרך (