1 Nephi 12:17

and the mists of darkness, are the temptations of the devil, which blindeth the eyes, and hardeneth the hearts of the children of men, and leadeth them away into broad roads, that they may perish, and are lost;

The mists of darkness are the devil’s temptations. They blind people’s eyes and harden their hearts. They lead them away on wide roads where they die and are lost.

“The dark mists are the devil’s temptations. They blind people and harden their hearts, leading them down wide roads to destruction.”