What is purgatory? The Sufis call it Naza, a suspension of activity. If there is any death it is stillness and inactivity. It is like a clock which for some time is stopped; it wants winding, and a little movement sets a clock going. So there comes the impulse of life, which, breaking through this cloud of mortality, makes the soul see the daylight after the darkness of the night. In Sufi terms this may be called Nahazat.