I Have Heard You Calling in the Night

Here I am Lord, Is it I Lord?
I have heard You calling in the night.
I will go Lord, if You lead me.
I will hold Your people in my heart.

I've been thinking of this song a lot lately, as we teach Second Daughter to stay all night in her own crib. I try to hear His voice calling, even as He sounds just like Second Daughter, First Daughter or First Son.