The phrase Law of Attraction, used widely by New Thought writers, is the idea that like begets like. The Law of Attraction argues that active thoughts attract to it likened experiences. The Law of Attraction says that which is like unto itself is drawn. 
The Law of Attraction became more popular after the release of The Secret, a 2006 film by Australian television writer and producer Rhonda Byrne. Byrne followed up the film with a bestselling book of the same title and appeared on a series of talk shows in 2007.
The Law of Attraction is not a scientific law. Critics note that it is unsupported by scientific evidence and violates scientific principles and understanding of the universe.  Instead, the Law may be explained as an illusion created by the connection between self-confidence and success or one’s own perception, like the placebo effect.
Believers refer to and cite research done on the beneficial health effects of optimism and the book written by science fiction writer Travis S. Taylor called The Science Behind The Secret as evidence for the Law of Attraction.