The purpose was to burn the bodies of the Jews, until they became ashes.
Explanation:
In "Night" Elie Wiesel shows how, in addition to all the abuses and violence that Jews suffered in concentration camps, there was a psychological fear that was constantly with them that the sight of the furnace and the flames that day after day burned the bodies of several Jews, whether they were children, young, old, it didn't matter. The Nazis stressed that the Jews would be thrown into the flames until their bodies were completely consumed by the fire, burning them alive, until they became ashes.
