I would like to walk about life with the "burning in my heart" like the men on the road to Emmaus desired. I want to walk with God and know that burning within my heart, but that very rarely feels the true case or state of my heart within me. A lot of the times I feel more like the people of Jerusalem described in Isaiah chapter 30. Verses 19-21 tell the people of Jerusalem they will weep no more and when they do cry out to God, He will hear them. Then he says, "Though the Lord may give you the bread of adversity and the water of affliction: yet the Teacher will not hide himself anymore, but your eyes shall see your Teacher."
There are many times we feel the darkness stronger than we do the joy and peace of God's presence. But as Brennan Manning says, "The loss became the moment of grace."
When we face the moments of darkness when God feels absent and not burning within our hearts, those are the times faith is really established. These are the places to look for God and learn to trust in His presence even when it does not feel like he is. God will not feel present all the time. This is a reality most of us are aware of, but most of us fear and worry in those times instead of trusting and realizing God's presence even then. Just because it is dark does not mean that God is not present. Just because our heart does not burn within our chest with Blessed Assurance does not mean God is actually absent. "Though the Lord may give us the bread of adversity and the water of affliction, the Teacher will not hide himself." Just because it is dark does not mean he is hiding.
Even though it is dark, there is "a voice BEHIND you, saying, 'This is the way; walk in it.'" Faith happens in the dark, but it does not necessarily mean the light will be turned on. Faith simply means while it is dark you still trust God even if he NEVER turns the light on.