Looks like another love-bombing cult that pushes one of the many flavors of radical optimism. The Secret is a milder version of belief that says that positive attention, intention and consciousness changes reality. The hidden catch is that if things aren't going your way it is your attitude or awareness that is the problem.

Optimism and positive attitude can change your perception and attitude and allow you to sometimes see and use opportunities you would miss other and this is good. But objectively it doesn't actually change reality. Rule one is that reality does not care. There are times and situations where all the optimism in the world won't help. It can prevent a realistic view of people, yourself and the world around you. Taken too far a positive attitude can be a drug. A very dangerous drug.