Likutei Moharan 33:1/ליקוטי מוהר"ן ל״ג:א׳

1“Mi HaIsh Hechafeitz Chaim (Who is the Person Who Desires Life), who loves days of seeing good.” (Psalms 34:13)

2The principle is that a person should pursue peace. [He should see] that there is peace between Jews, and that each person is at peace with his attributes—i.e., he should not be conflicted within himself or over what happens to him. It should make no difference to him whether he experiences good times or bad, he always finds God in it. This is (Psalms 56:11), “When He is YHVH, I will praise His word; when He is Elohim, I will praise His word.”

3By what means can a person find God whether in good times or bad? By means of the Torah, which is called peace, as is said, “and all her paths are peaceful” (Proverbs 3:17). And by means of tzaddikim, who are also called “covenant of peace.” As a result, he is able to love the peace in every situation, both in good times…. And there can then be peace between Jews, with them loving one another.