Akhand Jyot
Every question on the site tagged Akhand Jyot, each answered from a timestamped source rather than a summary written from memory.
The unbroken lamp kept burning continuously throughout Navratri — relighting it fresh each day, rather than keeping it unbroken, is considered improper. It must stay lit until the Kalash is shifted at Visarjan, after which it's allowed to extinguish naturally and fully cooled with Gangajal before the Kalash is carried out for immersion.
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