Musar su Genesi 31:42

מיכאל represents the attribute of Mercy, uniquely associated with Abraham who is known as an exponent of G–d's kindness, חסד, as we know from Michah 7,20 "who gives kindness to Abraham". גבריאל is the angel in charge of גבורה, the attribute of justice, something Isaac was the prime exponent of, as we know from Genesis 31,42. נוריאל also known as אוריאל to Kabbalists, is in charge of the emanation תפארת which combines the attributes of חסד and גבורה. He is called אור-יאל, inasmuch as he represents חסד, i.e. אור, and נור-יאל, inasmuch as he represents the aspect of גבורה. This latter is an attribute in which G–d appears as a consuming fire, therefore the אור of חסד is turned into נור. There are those who understand the letter א in the acronym ארגמ"ן as an allusion to the dual name of that angel. At any rate, the five letters in that acronym symbolize four camps or armies; רפאל, as the angel in charge of the emanation מלכות, which "receives" from the three aforementioned ones, [seeing that מלכות is the "lowest” of the emanations, the one closest to our physical domain, the word "receives" may mean that it is the recipient of the input of the higher emanations. Ed.]. So much for the meaning of ארגמ"ן.

Rabbi Elazar fell upon his face, whereupon he beheld the image of his father. Rabbi Elazar told him, “I asked who the angels were and they answered me that they were Avraham and Yitzchak… In other words, the souls of Avraham and Yitzchak came to lead the way for Yaakov as he fled from Lavan the Aramean. And even though Yitzchak was still alive at the time, nevertheless, at the time that he was bound upon the altar his soul left him and ascended to Heaven where it became attached to the soul of Avraham. Then the two of them together went before Yaakov. This is the meaning of the verse, “The God of my father, the God of Avraham and the fear of Yitzchak, was with me” (Bereishis 31:42). Rabbi Shimon then explained that Yaakov was not the only one to be joined by the souls of the righteous. In fact, they come to every God-fearing person to save him from thoughts of sin and needless to say from actual sin. But if a man entertains wicked thoughts, whether in town, in the field or at home, a malignant spirit called ChNYH comes to him. It is appointed over all those who entertain wicked or foreign thoughts while traveling. This malignant spirit clings to the person and does not separate from him until it has led him into a serious transgression. This imparts a blemish to his soul, on account of our many sins, as a result of which he will be filled with regret until the end of his days. Nevertheless, it is a loss than cannot be made good. Know, therefore, that wherever you go you will be joined by emissaries who will further your thoughts, whether for bad or for good.