It is, however, necessary to mention that there are four states of vision; the first, _Núníar_,[307] or that which is seen during sleep: by sleep is meant that state when the subtile fumes arising from the food taken into the stomach mounting up to the brain, overpower external perceptions at the time of repose: whatever is then beheld is called in Farsi _Tínáb_, in Arabic _Rúyá_, and in Hindi _Svapna_.[308] The state beyond this dignity is _Susvapna_,[309] in Arabic _Ghaib_ or “mysterious,” and in the popular language of the Hindoos _Sukhásváda_[310] or _Samádhi_[311] (suspending the connexion between soul and body), which is as follows: when divine grace is communicated from the worlds on high, and the transport arising from that grace locks up external perceptions, whatever is beheld during that state is called _Binab_ or “revelation:” but that state into which the senses enter, or _Hóshwázhen_, “a trance,” which is expressed in Arabic by _Sahú_ or “recovering from ebriety,” and in Hindi by _Jagrat_,[312] “awaking,” and _Pratyaya_ “evidence,”[313] means that state in which divine grace being communicated, without the senses being overpowered, it transports the person for the time being to the world of reality: whatever he beholds in this state is called _Bínáb_ or _Mâainah_ “reality.” The state higher than this is the power of the soul to quit the body and to return to it, which is called in Farsi _Nívah-i-chaminah_, in Arabic _Melkát Khalâ-baden_, and in Hindu _prapura paroksha_.[314] They affirm that the bodies occupied by some souls resemble a loose garment, which may be put off at pleasure; so that they can ascend to the world of light, and on their return become reunited with the material elements. The difference between _Sahú_ and _Khalâ_ is this: _Sahú_ means, being absorbed in meditation on the communication of divine grace, so that, without a relaxation of the senses, the person may, for the time being, actually abide in the invisible world: whereas _Khalâ_ means, that the individual, whenever he pleases, separates himself from the body and returns to it when he thinks fitting. The spiritual Maulavi thus says: “Shout aloud, my friends! for one person has separated himself from the body; Out of a hundred thousand bodies, one person has become identified with God.”