 Having established this distinction between the external world and the mind, Samkhya posits the existence of two metaphysical realities Prakriti (matter) and Purusha (consciousness).Some interpretations of Buddhism assert that external reality is an illusion, and sometimes this position is [mis]understood as metaphysical solipsism.Buddhist philosophy, though, generally holds that the mind and external phenomena are both equally transient, and that they arise from each other.