We live in a world that's overrun by selfishness. Everything is about Me, Myself, and I. What's in it for me? How is this going to improve my life? What can you do for me? But what would life look like if everyone starting asking What is this doing for you? How can I help you improve your life? What can I do for you?
Many people are under the impression that humility is the same thing as low self-esteem, or self-neglect, or even self-hatred, but this isn't true. It's not making yourself and your needs unimportant, but rather recognizing and administering to the needs of others first.
Mother Teresa has a beautiful list of ways to start practicing humility.