As regards the erotic poetry which is recited in Sufi gatherings, and to which people sometimes make objection, we must remember that, when in such poetry mention is made of separation from or union with the beloved, the Sufi, who is an adept in the love of God, applies such expressions to separation from or union with Him. Similarly, "dark locks" are taken to, signify the darkness of unbelief; "the brightness of the face" the light of faith, and drunkenness the Sufi's ecstasy. Take, for instance, the verse:
Thou may'st measure out thousands of measures of wine,
But, till thou drink it, no joy is thine.
By this the writer means that the true delights, of religion cannot be reached by way of formal instruction, but by felt attraction and desire. A man may converse much and write volumes concerning love, faith, piety, and so forth, and blacken paper to any extent, but till he himself possesses these attributes all this will do him no good. Thus, those who find fault with the Sufis for being powerfully affected, even to, ecstasy, by these and similar verses, are merely shallow and uncharitable. Even camels are sometimes so powerfully affected by the Arab-songs of their drivers that they will run rapidly, bearing heavy burdens, till they fall down in a state of exhaustion.
The Sufi hearer, however, is in danger of blasphemy if he applies some of the verses which he hears to God. For instance, if he hears such a verse as "Thou art changed from thy former inclination," he must not apply it to God, who cannot change, but to himself and his own variations of mood. God is like the sun, which is always shining, but sometimes for us His light is eclipsed by some object which intervenes between us and Him.