This spiritualism is indicated in the following quotation:

it is to this inner dimension that one must turn in order to see, utter, and know the One. In Islam this dimension of inwardness is the domain par excellence of Islamic spirituality, and in fact the Spirit... is identified with this dimension, which is at once beyond and within the macrocosm and the microcosm.

Nasr, 1991, p. xiii)

He further explains the important difference between Sufi mysticism and the Shar?'ah or the law of ordinary Islam:

All of Islam is, of course, concerned with God and His Will as embodied in the Shar?'ah, the Divine Law of Islam, obedience to which is sufficient in order to live a life of balance and happiness in this world and to be saved at the moment of death. A study devoted to Islamic spirituality, however, could not be synonymous with one devoted solely to...
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