"Gratitude is a mindful awareness of the benefits of life. It's the greatest of virtues. Studies have linked the emotion with a variety of positive effects. Grateful people tend to be more empathetic and forgiving of others. People who keep a gratitude journal are more likely to have a positive outlook on life. Grateful individuals demonstrate less envy, materialism, and self-centeredness. Gratitude improves self-esteem and enhances relationships, quality of sleep, and longevity."