Furthermore, the Buddha argues that the world can be observed to be a cause of suffering (Brahman was held to be ultimately blissful) and that since we cannot control the world as we wish, the world cannot be the Self. The idea that "this cosmos is the self" is one of the views rejected by the Buddha along with the related Monistic theory that held that "everything is a Oneness" (SN 12.48 "Lokayatika Sutta"). The Buddha also held that understanding and seeing the truth of not-self led to un-attachment, and hence to the cessation of suffering, while ignorance about the true nature of personality led to further suffering.