(1) The Master was AWARENESS itself. Knowledge reveals itself only in the presence of total AWARENESS...and the first revelation is not through the words. It is direct. Then the mind comes into play and translates the Knowledge in to words. (2) Knowledge is meaningless in absence of the VEIL of MAYA. If the VEIL is lifted then there is no disciple, no Master...no Knowledge,no Ignorance...all is ONE. So even to further the Knowledge a fine Veil of Maya is necessary.