Whatever the case, the Buddha taught meditation with a new focus and interpretation, particularly through the "four dhyānas" methodology, in which mindfulness is maintained. Further, the focus of meditation and the underlying theory of liberation guiding the meditation has been different in Buddhism. For example, states Bronkhorst, the verse 4.4.23 of the "Brihadaranyaka Upanishad" with its "become calm, subdued, quiet, patiently enduring, concentrated, one sees soul in oneself" is most probably a meditative state. The Buddhist discussion of meditation is without the concept of soul and the discussion criticises both the ascetic meditation of Jainism and the "real self, soul" meditation of Hinduism.