Doctrines, scriptures, sutras, essays, are not to be regarded as systems to be followed. They merely contribute to understanding. They should be for us a source of stimulation, and nothing more... Adopted, rather than used as a stimulus, they are a hindrance.
True Enlightenment, as experienced by the Buddha and transmitted through the patriarchs, is independent of verbal explanations, including the record of the Buddha's teachings (i.e., scriptures) and later doctrinal elaborations.