The disciples of Khwaja Nizam-ud-Din Wali, a great saint of Delhi, were once sitting waiting for him to come and speak upon a very abstruse and difficult matter, when to their astonishment they saw his servant come into the room and sit down on the murshid's seat. Nizam-ud-Din then came in, made a very deep bow to the servant and took his seat before him. The servant began to speak and spoke for some time, explaining some very subtle and deep questions. Then a change came over his face, he looked around, and ran from the room in great confusion. Afterwards Nizam-ud-Din told his disciples that he had asked his murshid for the answer to some very difficult question, and that the subject was so complex that the murshid needed a human form in order to explain it exactly, and that was why he had spoken through the servant.