Siddha-shila
In Jain cosmology, siddha-shila is situated at the very top of universe. The siddhas (liberated souls who will never take birth again, who have gone above the cycle of life and death) go to the siddha-shila after being liberated and stays there till infinity. Siddha is a level of soul above Arihant who possess kevala jñana.
In Hindu cosmology, siddhaloka is a subtle world (loka) where perfected beings (siddhas) take birth. They are endowed with the eight primary siddhis at birth.
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