The Guru and Shishya

It has always been held in Indian yoga that the relation between Guru and disciple must be one of full confidence and full acceptance of the Guru by the Shishya. The latter was supposed to accept unquestioningly the guidance and to follow the instructions of the Guru without criticism or questioning; he was not supposed to criticise, to blame or to refuse adhesion or to follow in a questioning or grudging spirit: for that would stand in the way of his advance.

Ref: Letters on Yoga Vol. II