This volume is devoted both to elucidating the philosophical metaphysics of ‘Reality’ and to clarifying technical sufi terms pertaining to the path itself. Such terms include the sufi meeting-house (khaniqah) as well as many lesser-known, and some generally obscure terms concerning the way.
According to the sufis, Reality is God’s Essence without the veil of determined (ta’ayyon) forms where illusory multiplicity becomes effaced in the light of the Essence.
-Kashshaf estelahat al-fonun
Know that Reality is
     the very station of the Essence;
It is that which embraces
     both unbelief and faith.-Shabestari