These traditions advocate ideas like Buddha nature, Nirvikalpa samadhi, non-dual consciousness, Henosis, and Theosis. These are supposed to be connected to oneness. Though they are a component of Western culture, concepts of oneness pose a threat to the more prevalent Western ideas of a separate self.
According to some schools of Hindu philosophy, the reality is inherently non-dual. These schools of thought, often known as Advaita schools, derived from the Sanskrit term Advaita, which means "not two", perceive the material world as either a component of the supreme reality or as a simple illusion.