The document summarizes a study on the effects of gratitude. In the study, participants were split into three groups: a gratitude group that listed things they were grateful for each week, a hassles group that listed daily irritations, and a control group that listed weekly events. People in the gratitude group reported feeling 25% happier after 10 weeks, with greater optimism, life satisfaction, and more exercise. The document then discusses various "laws" of gratitude, including that cultivating an attitude of gratitude makes people more aware of what they already have in their lives and draws more abundance. It suggests focusing on blessings rather than what is lacking.