3 Nephi 8

 I find it interesting that as the Savior died, for three days - 

"...there was thick darkness upon all the face of the land, insomuch that the inhabitants thereof who had not fallen could feel the vapor of darkness;

21 And there could be no light, because of the darkness, neither candles, neither torches; neither could there be fire kindled with their fine and exceedingly dry wood, so that there could not be any light at all;

22 And there was not any light seen, neither fire, nor glimmer, neither the sun, nor the moon, nor the stars, for so great were the mists of darkness which were upon the face of the land.

23 And it came to pass that it did last for the space of three days that there was no light seen; and there was great mourning and howling and weeping among all the people continually; yea, great were the groanings of the people, because of the darkness and the great destruction which had come upon them."  (3 Nephi 8:20–23)

The Savior declared - 

"...I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life."  (John 8:12)

Very symbolic