"Why are the dark places holy?" Orual, Till We Have Faces; C.S. Lewis
"Who among you fears the LORD and obeys the word of his servant? Let him who walks in the dark, who has no light, trust in the name of the LORD and rely on His name. But now, all you who light fires and provide yourselves with flaming torches, go, walk in the light of your fires and of the torches you have set ablaze. This is what you shall receive from my hand: You will lie down in torment." Isaiah 50:10,11
"Then Solomon said, "The LORD has said that He would dwell in a dark cloud" 2 Chronicles 6:1
"The people remained at a distance, while Moses approached the thick darkness where God was." Exodus 20:21
"Yea, the darkness hideth not from thee; but the night shineth as the day: the darkness and the light are both alike to thee." Psalm 139:12
Indeed, darkness and light are no different to God - the difference is ours to experience.
While it is true that "This is the message we have heard from him and declare to you: God is light; in him there is no darkness at all" I Jn. 5:1, God is in the darkness as we experience it in our lives. He is not ONLY in the light but He is also in the darkness; sometimes He calls us THERE and not into light - for a while. He IS our light in the darkness which, I think, is why we are warned not to light a fire or torch. Our own answers are not THE answer.
So if you are in the darkness now, if the path to follow is suddenly obscured from view for you or those you love, perhaps you are right where God wants you. At the very least, He is where you are. He meets you there. He sits with you there.
"Are you answered?" asked the gods of Orual. "Yes. You yourself are the answer." Orual discovered that the questions and the darkness melt away in the presence of God. She found Light when she finally admitted she could do nothing about the darkness of her soul.
God brings us to the light who is the Light of the world. God gives us Jesus in our darkness.