Psalm 43

"O send out your light and your truth;
let them lead me;
let them bring me into your holy hill
and to your dwelling."
Psalm 43:3

Jesus says, "I am the truth" (John 14:6) and "I am the light of the world (John 8:12) and also refers to the Holy Spirit as the spirit of truth (John 15:26)." This is the gift that God has given us that we might be led into God's presence.
One of the things that I have been reminded over and over again these last few months is how much easier it is to see things when there is light rather than darkness. I can find my way around slowly in the darkness or I can use manufactured light, but it isn't the same. These days I'm doing a lot of asking to be led. I want to go where God wants me to go and not just where I or someone else thinks I should go. The amazing thing is that when I stop to ask there is light to lead me. It isn't something that I make happen or that comes from someone else. It is as if the sun comes up and points the way to where God is leading.
The thing is that you can't package it to sell it. You can't make it happen by strength of will. It really is a gift, a gift given freely to allow one to see even the dwelling place of God.