Likutei Moharan 1:6/ליקוטי מוהר"ן א׳:ו׳

16. And this is [the explanation of the opening verse]: “Ashrei (Happy) are those whose way is perfect, [who walk with the Torah of God].”

2aShRei — This suggests gazing.

3whose way is perfect — This corresponds to “Yaakov, a man of perfection” (Genesis 25:27). [Yaakov] is the aspect of inner intelligence, as above. That is, to merit focusing on the inner intelligence of each thing—the aspect of “Yaakov, a man of perfection”—is achieved by means of the Torah. And this is:

4who walk with the Torah of God — By studying Torah with enthusiasm, strength is given to the Kingdom of Holiness/ Nun, [enabling it] to receive from the inner intelligence, the Chet. CheiN is then produced and his words are accepted, as explained. As a result, the chein and importance of the Jewish people are enhanced, and all the prayers and petitions are accepted.