This quote means that you can learn more about yourself by helping and serving other people. This means dedicating your time, energy and efforts to benefit someone else, and in the process, you’ll learn more about yourself. It can be something small like helping an elderly neighbour, or a volunteer project to help the homeless. When you break outside of your comfort zone, explore new challenges and push yourself in different ways, you can become more self-aware and learn more about who you are.