Bulleh Shah This is to reference to Naqshbandi`s reference....I am not a great historian like him. But yes he is right when he talks about spiritual Sufism ideologies insipred by Sunni spiritual ideology....but let me tell u my friend it`s not where a person gets his doctrine and education from (as you said Bulleh Shah was educated in madrassah), it`s how you utilize the knowlegde after that is important.

If you refer to Bulleh Shah`s lines

``Na maen bheth mazhab da paaya Na maen apna naam dharaaya ``...which means ``Secrets of religion, I have not known .I am not the name I assume ``...that shows he went beyond religious text books & religious preachings and had attained SELF REALISATION ...the REAL HIMSELF

He was a humanist and let me tell you it`s not the maulvis/Mullas in Islam and (the Pandits in Hinduism) which is gonna help you find the real GOD...the Almighty....which is inside you....You YOURSELF will have to take that special effort and Bulleh Shah had done that ....