
Khalwa (Arabic, also khalwat; lit., `solitude`; pronounced in Iran, `khalvat`; spelling in Turkish, halvet). == Sufism == === Retreat === In Sufism, a solitary retreat, traditionally for 40 days (see `chella`), during which a disciple does extensive spiritual exercises under the direction of a Sufi master. A Sufi murid will enter khalwa unde...
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http://en.wikipedia.org/wiki/Khalwa

Small Islamic rural school that stressed memorization of the Quran and provided some instruction in the reading and writing of Arabic.
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https://www.photius.com/countries/sudan/glossary/index.html
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