The lyrics of Trey Anastasio's song What's Done are simple yet thought-provoking. The words speak to the idea of acceptance and moving forward in life. The phrase "what's done is done" is a common saying that acknowledges the fact that you can't change the past. Anastasio emphasizes this point by repeating it in the first two lines of the song. The next line, "Undo what's done," is almost contradictory to the first. It speaks to the human desire to go back in time and change the things we regret. However, the subsequent line, "To make what's new," suggests that perhaps we shouldn't dwell on past mistakes but instead focus on creating something new from them. The final lines, "What's to be today, what the last one knew. Undo what's done, and make what's new," reinforce this idea of learning from the past and using that knowledge to create something better for the future. The final word, "sing," almost seems to be a call to action, an encouragement to embrace the present and move forward with optimism.