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They do so a s a remembrance of Jesus' death and sufferings for them.

Actually They do it as a remembrance of the 40 days he was in the desert before he died. Also Christians are supposed to give up something they really love during these 40 days just like how Jesus gave up his life and He also gave up almost everything for the 40 days in the desert.

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15y ago

What else can I help you with?