The below passage is from an introductory ‘handbook’ of Sufism in Arabic by the seventeenth century Aleppine Sufi Qāsim al-Khānī (d. 1697). His description here is hardly original, rather, it represents the shifting through and representation of centuries of Sufi thought and practice. At times his writings reflect a concern with theological ‘deviance,’ a particularly acute concern for Sufis like him who sought to defend and perpetuate the long tradition of Sufism- including the many theo-philosophical developments of the thirteenth century, such as those associated with Ibn ‘Arabi. Many of these beliefs and practices came under increasing scrutiny in the Ottoman Empire and elsewhere from the sixteenth century onward, even if such critiques did not become truly mainstream until much closer to our own age. al-Khānī seeks to defend such beliefs as ‘oneness of being,’ while also decrying allegedly incorrect interpretations of such beliefs, for instance here:
That which benefits the wayfarer in his journey is witnessing (shuhūd) of oneness of being not its gnosis. Witnessing is a state (ḥāla) necessarily realized from struggle, privation, successive exercise, lowliness, poverty, and need. And this state does not benefit the wayfarer unless there is with it following of the Shari’a, for if there is not with it following of the Shari’a, then it is damning zandiqa [heresy or deviance].
The passage below is less concerned with fending off theological error; rather, it presents a pretty traditional Sufi understanding of spiritual journeying: the passage through successive ranks of ‘veils’ preventing human cognizance and connection with God. As it is written in a straight-forward, pedagogically-inclined manner, I will leave off further commentary of this fine example of early modern Sufi teaching.
And the greatest of the veils that are between the servant and his Lord are the veils of sins, because they are darkness. As for veils other than them, to be sure the servant should hasten to dispel them, although they are luminescent, not totally veiling the servant. For the likeness of the veil constituted by sins is the likeness of an encompassing wall between you and your goal, and you cannot see essence or trace, due to its preventing, nor shape—which is different from the luminescent veils. They are like glass, with what is behind them being seen, obscuring and revealing by their increase or decrease. If the glass is increased greatly, then the intended object behind it is hidden, though the hiddenness of what is behind the wall is not the case here—at least the shape of the object can be discerned. All of this is what can be seen with the eye of the senses.
The heart is likewise. So long as its eye, which is called discernment (al-baṣīra) is veiled by the darkness of disobedience, which is called overcoming, imprinting, and sealing, it does not see anything of the lights of the Unseen, and has no awareness of what sin and evil does to it.
Then if one turns from what one is in, the veils of sins are lifted from his heart, and he beholds divine things, and begins to feel fear concerning his punishment, and hopes for reward, and persists in obedience to God, and turning away of evil deeds. Now he is veiled with luminescent veils, which are his dependence upon these deeds, for he now believes that he is the one who brings them into existence.
Then, after that, God lifts this veil from him, through the blessing (baraka) of acts of obedience, and he sees that the grace upon him belongs to God, for God causes him to be successful in these deeds, and that he is insufficient in giving thanks for them, and that the effective Giver is God. If God desires of someone good, he invests him with the garment of pious fear (taqwa) so as to make sound his presentation before His presence—and nothing of good or evil is by the hand of the servant, rather, all is by the hand of God.
Then, when this veil is lifted from his heart, he imagines that he has attained to God, for there is spiritual delight in this station. But if the hidden subtleties encompass him, this veil too is raised from him, and he does not cease cutting through the veils, one after another, as per the arrangement of stations and gates as in this book, until he attains to true station, the stopping place of the Most Veiled—so understand!
Do not believe, because of the likeness of the veils to panes of glass, that God is a thing which can be seen by the perceiving eye—for He is free of that. God take in hand your guidance!
Qāsim al-Khānī, al-Sayr wa al-sulūk ilā malik al-mulūk