The highest heaven of the Sufi is his own heart, and that which man generally knows as love, to a Sufi is God. Different people have thought of the Deity as the Creator, as the Judge, as the King, as the Supreme Being; but the Sufis call him the Beloved. Are there any dogmas, are there any rituals or ceremonies which may be called Sufi? There is nothing which restricts a Sufi, so that he can only be a Sufi by doing it. At the same time he is free to make use of any ritual, any ceremony that he thinks suited to his purpose.