"Let Them" is a concept introduced by Mel Robbins in her book, encouraging individuals to release the need to control others and instead focus on what they can control: their own thoughts, actions, and reactions. It's about accepting that you can't change others, and that trying to do so is often a waste of energy and can lead to stress and negativity. By letting go of the need to manage others, you free yourself to focus on your own growth, happiness, and goals