Fixed entities are mystical matters that are used to illucidate most of essential and deep Gnostic knowledge like God's knowledge of details, destiny and decree, unity of Divine acts and appearance of multiplicity .The names and attributes of God have tow appearance: one of them is scientific appearance and the other one is objective manifestation, scientific manifestation is called Fixed entity and it's plural is Fixed entities. The application of entity to them is because its being essence. Their being fixity means they have not any ending and they are always existent. In the present writing the idiom of fixed entities is first explained on the basis of the main Islamic mystical contexts and for it's approval some verses of the Quran has been presented.
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