Likutei Moharan, Part II 72:3/ליקוטי מוהר"ן·תנינא ע״ב:ג׳

13. Now, there is a universal mind and there are individual minds. All the individual minds receive from the all-inclusive mind, namely, the [leading] sage of the generation. This is the benefit of meriting exchanging gazes with the true tzaddik, who is the sage of the generation, the concept of the all-inclusive sage. As a result of that all-inclusive sage seeing and gazing at him, a person’s mind shines. And on account of his mind shining he receives greatness, because greatness is primarily produced by the mind’s shining, as mentioned above. This is because “eyes” refers to wisdom, as it is written (Genesis 3:7), “Then the eyes of both of them were opened”—and Rashi comments: This was said with respect to wisdom.

2Therefore, when this sage, who is the all-inclusive mind, gazes at a person, he shines into him wisdom and intellect, so that his mind shines and he receives greatness. For each person has some measure of mind and daat, commensurate with his level. However, each person’s mind and daat are mired in constriction and fail to shine. But when the generation’s sage, who is the all-inclusive mind, gazes at him, this causes each person’s mind to shine commensurate with his mind’s level. And as a result of the mind’s shining, each person receives greatness commensurate with the level of his mind, because greatness is primarily a product of the mind’s shining, as mentioned above.