Parshat Vayikra opens the third book of Torah by outlining korban, burnt offerings. This week, Rabbi Ari Strulowitz of Midwest NCSY, interprets the wording of the second verse: "a man from among you brings a sacrifice." While some mitzvot are must-do's, many others are voluntary, and so perhaps this sacrifice can be considered a voluntary one. Why does this inform the way we conduct ourselves today?