I check out Ansari of Herat. He was a sheikh who lived from 1006-1088.
Here is one of his poems, translated by Andrew Harvey.
Empty Me of Everything But Your Love
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Lord, send me staggering with the wine
Of Your love!
Ring my feet
With the chains of Your slavery!
Empty me of everything but Your love
And in it destroy and resurrect me!
Any hunger You awaken
Can only end in Feast!