The more thankful you are, the easier it will be for you to be happy with what you already have in your life. If you look at someone who is unhappy, most of the time it's because they're expecting something that they don't already have in their lives. This keeps them from being happy with what they have because it keeps them from being thankful. Ungratefulness is probably the leading cause of unhappiness, and all of us fall into this habit sometimes. However, the more that you practice gratitude in your life, the less ungratefulness will be able to rob you of your joy.
Leading expert on gratitude, Robert Emmons, states that gratitude has two key elements, namely:
As an affirmation of goodness. We realise that there are good things, gifts and benefits that we have received, and
We recognize that the sources of this goodness/gifts/benefits are outside of ourselves. We received many gifts from other people and, if you're of a spiritual mindset, from higher powers. These gifts help us to achieve goodness in our lives.
He gives us 4 reasons why gratitude is good for us in this video
Gratitude can change the whole way you see life! It is a flood-gate opener to blessings, joy peace and all sorts of goodness. With thankful hearts, we can even touch the very heart of God, and King David even told us that when we approach God, enter into His gates with thankful hearts! You can revolutionize the quality of your life by developing gratitude.
Psalms 100:4, "Enter into his gates with thanksgiving, and into his courts with praise: be thankful unto him, and bless his name."
According to an article in Greater Good people who practice gratitude consistently report a host of benefits:
Stronger immune systems and lower blood pressure;
Higher levels of positive emotions;
More joy, optimism, and happiness;
Acting with more generosity and compassion;
Feeling less lonely and isolated.