Genèse 33:4

"And he hugged him-" His mercy was aroused (lit. rolled) when he saw him bowing down all of these bows.

"And he kissed him-" There are dots upon it, and there is an argument in this matter in the Braita (Tannaitic teachings outside the Mishnah) of Sifri, Beha'alotcha 69. There are those who expound the dots to mean that he did not kiss him with all his heart. Rabbi Shimon the son of Yochai said, "It is plainly known that Esau hated Jacob, but his mercy was aroused in this moment and he kissed him with all his heart."

And Esau ran to meet him, and embraced him, and fell upon his neck and kissed him, and they wept. Esau wept on account of the pain of his teeth which were shaken; but Jakob wept because of the pain of his neck.

The midrashic interpretation of the dots on top of the word and he kissed him, וישקהו is good for those who have just been weaned, but according to the straightforward interpretation Esav did not plan to do evil to his brother. And the proof is [the word] ויבכו, and they cried, [which is also used in the context of the reunion between] Yosef and his brothers.

וירץ עשו, his attitude changed suddenly when he realised to what extent Yaakov had humbled himself before him. It is of great concern to us seeing that we live among the descendants of Esau, people who are arrogant, consider themselves invincible. Yaakov’s conduct vis a vis Esau teaches that the only way to escape the sword of Esau is through self degradation and gifts. This corresponds to what our sages taught us (Taanit 20) that the curses of the prophet Achiyah Hashiloni were more beneficial to the Jewish people than the blessing showered upon them by Bileam. Achiyah had cursed the Jewish people describing them as a reed which bends in all directions, a reference to someone demeaning himself rather than facing up to adversaries. (Kings I 14,15) If the Jewish people during the period of the second Temple had taken his advice to heart, the Temple would not have been destroyed. Rabbi Yochanan ben Zakkai testified to this when he said “if not for the militant extremists the Romans would not have destroyed the Temple.”

וירץ, when Esau saw that Yaakov had humbled himself so much before him, he forgave what he had done to him and his sense of compassion was stirred.

וישקהו, the word has a dot on each of the letters. In Bereshit Rabbah 78,9 Rabbi Shimon ben Elazar says that everywhere where you find the dots do not cover each letter of the word underneath we give preference to the meaning of the text as is, without the dots. When there are more dots than letters, we give emphasis in our interpretation to the dots. In this instance, there are as many dots as there are letters in the word וישקהו, so that we understand that Esau kissed Esau sincerely with all his heart. To this Rabbi Yannai countered by asking that if this is indeed so, why bother to put any dots on the word if they do not affect the meaning? We therefore must interpret that originally Esau had intended to bite Yaakov’s neck feigning an embrace. G’d made his teeth as soft as wax and Yaakov’s neck as hard as ivory. ויבכו, one on account of his neck, the other on account of his teeth.