Kabbalah su Genesi 27:28

The skull of Atika
The skull, namely, Keter, of the white head, that is, the head of Arich Anpin that is completely white, which denotes the sway of Chesed, has neither beginning nor end of the appearance of Chochmah. This refers to the upper Chochmah and the lower Chochmah, since the flow of Chochmah and the flow of Chassadim are united within it as one light of Chassadim. The unison of its abundance pours and shines from it, and the righteous receive from it four hundred desirable realms in the world to come. From the unity of streams, which is the white head, dew – abundance – drips daily down to Zeir Anpin, which is the location called heaven. With it, this dew, the dead will arise in the future as written, “therefore Elohim give you of the dew of heaven” (Bereshit 27:28). That is the dew of Zeir Anpin that is called heaven. And its head is filled. It flows from this Zeir Anpin to the apple field, which is Malchut, and the entire apple field is illuminated by this dew.

"Therefore the Elohim give you of the dew of heaven, and the fatness of the earth, and plenty of corn and wine" (Beresheet 27:28). Rabbi Abba said, This verse has already been explained. Nevertheless, come and look at the verse, "A song of ascent. In my distress I cried to Hashem, and He heard me" (Tehilim 120:1). How many songs and praises did David say before the Holy One, blessed be He, all in order to fix his grade and to make himself a name, as it is written, "And David got him a name" (II Shmuel 8:13). This song he said when he saw what Jacob accomplished, that he was answered and received the blessings. He said, "In my distress I cried to Hashem, and He heard me." [If it were not for Jacob, who received the blessings, the secret of the whole Mochin to construct the Nukva, David could not have made Her a name.]

Come and behold, Of the time when the serpent brought curses upon the world, and the land was accursed, it is written, "And to the man he said, Because you have hearkened to the voice of your wife...cursed is the ground for your sake" (Beresheet 3:17), for it will not produce fruit nor vegetation in a proper measure. Correspondingly, "...and the fatness of the earth", "in sorrow shall you eat of it" (Ibid.). "of the dew of heaven"; "thorns and thistles shall it bring forth to you,"He was blessed accordingly with "plenty of corn and wine." In opposition to, "in the sweat of your face shall you eat bread."; "let peoples serve you, and nations bow down to you," as they will cultivate the land and till the field, as it is written, "and the sons of the alien shall be your plowmen and your vinedressers" (Isaiah 61:5). Jacob took it all measure for measure, and of his own he took. The Holy One, blessed be He, caused Jacob to receive these blessings and cleave to his place and portion, while Esau cleaved to his own place and portion.