Question:
Is there any law prohibiting, or allowing, lighting(light up) candles in the Tzadikim tombs, or for a person who died?
Answer:
There are people that light candles in the tomb of tzaddikim as an illuy nishama, or at the grave of relatives. The reason for this is that a person's soul is compared to a candle. Therefore people light candles in memory of the departed souls.
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