Explain Eliezer's internal conflict after he sees the babies being thrown into the fire

In this section Wiesel continues to develop the symbolic meaning of the title Night. After describing the fiery ditch and the truck full of children consumed in flames, Wiesel writes: "Never shall I forget that night, the first night in camp, which has turned my life into one long night, seven times cursed and seven times sealed. Never shall I forget that smoke. Never shall I forget the little face of the children, whose bodies I saw turned into wreaths of smoke beneath a silent blue sky." Upon arriving at Auschwitz, Eliezer enters into a world of eternal nightmares and hellish visions. Both day and night are filled with horrors and evil, and night itself is no longer restful, but instead representative of the continual, creeping Nazi menace. Even after leaving the concentration camps, Wiesel is haunted by the nightmarish visions he saw at Auschwitz, and even day seems threatening and dark.