Pesach - Kings vs. Priests: Doing and Being to bring redemption.

In this shiur Rav Burg explains why we begin the seder with an invitation to others when we are already home and no one will hear our invitation. There are two ways to participate in a relationship: 1. Doing what the other wants 2. Creating a safe space for them to "be". Which comes first? This is the subject of a dispute between Rabban Gamliel and Rav Elazar ben Azaryah.