What does Leviticus 10:19 mean?

Aaron answered Moses, 'Look, today they offered their sin offering and burnt offering to the Lord, and you know what happened to me. If I had eaten the sin offering today, would that have pleased the Lord?' Leviticus 10:19 - Modern Text Bible

(Aaron explains that, given the tragedy with his sons, he didn't feel right eating the offering. He's being honest about his emotional state and his sense of what would honor God.)