Likutei Moharan 1:4/ליקוטי מוהר"ן א׳:ד׳

14. Therefore, Yaakov, who is the aspect of inner intelligence, merited grace. As is written (Genesis 33:11), “God has ChaNani (granted me grace).” He, therefore, blessed the tribes with CheiN, as in (ibid., 33:5), “The children with whom the Lord has ChaNan (graced) your servant.” And Binyamin, who was not there at the time, was therefore blessed by Yosef with grace, as is written (Genesis 43:29), “May the Lord yaChNkha (grant you grace), my son.”

2And it was specifically Yosef who was able to bless him with chein. This is because Yosef, more than anyone else, embodied the aspect of Yaakov, as in (Genesis 37:2), “These are the chronicles of Yaakov: Yosef.” He was the essence of [Yaakov’s] chronicles, for Yaakov and Yosef are considered as one (Zohar I, 176b).

3It is therefore said of Yosef: “The firstborn of his shor (oxen), grandeur is his” (Deuteronomy 33:17). “Firstborn” corresponds to the inner intelligence, as above. And this is “his shor,” it suggests gazing. For it is necessary to focus on the inner intelligence of every matter. Onkelos renders “grandeur is his” as “radiance is his,” an expression of luminance. For the inner intelligence shines for him in each thing. Even in a place that had been dark and obscure, the inner intelligence shines for him—when he merits focusing on the inner intelligence that is found in each thing—and brings him closer to God.