It says in Pirkei Avot (perek א Mishna יב ), One should be from the students of Aharon. He loves peace and he chases peace. Rabbenu Yona says that it means not just Ohev Shalom, that you love peace in your heart, but Rodef Shalom , that “ you chase it with your handiwork and actions. ” He says that there are people that love peace in their hearts, but they don’t trouble themselves to go out and create peace. That’s not called Going in the ways of peace in their hearts. To be considered a true student of Aharon HaKohen, you have to be a Rodef Shalom; you have to chase peace . You have to get involved. It’s not enough to be passive and stay out of arguments. If you see an argument and choose not to get involved, that’s not loving peace. There is a pasuk in tehilim that says, “ Desire peace and chase after it.” When you do that, you are student of Aharon HaKohen. Aharon didn’t just sit back and wait for something to come to him. He went out searching for how he could bring peace. That is what it means to be a Rodef Shalom. The reason for this is, as we have been mentioning, it’s the most important goal. A person has to chase it. When something is important to you, you don’t just sit back. You chase after it. We have been talking about shalom in relation to Ahavat Yisrael . The Sefer Hinuch, when discussing Mitzvah number 243, VeAhavta LeRe’echa Kamocha , says that the root of this Mitzvah comes from the general rule that you act toward your friend as you’d want to treated. You protect him like you’d protect yourself, you say thi ng s about him like you’d want said about yourself… you’re concerned with his honor and respect like you’re concerned with your own honor and respect… And when you act toward your friend in a way of love, peace and friendship and look out for his benefit, , the pasuk says on this type of person, “ The Jewish people that I’m proud of.” That’s a heavy statement. Nothing is better than when a child does something that causes his parent to say, “ I’m proud of him. ” It’s what we call nachat . When a person hears from another about something his son did- for example, helping another child who fell, that parent gets a big smile on his face, and feels happy and proud of him. Well, Hashem also takes pride too, so to say, When does God show off to the angels? What makes Him proud? VeAhavta LeRe’echa Kamocha/Shalom Jews. That’s what He’s proud of. The end goal is to make our Father in heaven proud of us. And we can only do that through shalom and Ahavat Yisrael.