An attitude of gratitude shifts our focus from what we lack or strive for to what we already have.

"At the crux of ingratitude is ego. Ingratitude turns us inward, inviting us to focus only on ourselves and our own needs. It leads us to feel entitled and to resent when at some point or other the world fails to meet one of our expectations. And it causes us to be blind to those who helped us achieve our successes."