That’s a big thing to put in a human heart!! Have you ever had moments, that you can’t explain, but it feels so real! An amazing God moment that you can’t put into words. Ecclesiastes 3:11b (https://bit.ly/2NQyasU) captures that well.
There’s this quote in old fashioned English by Augustine of Hippo: “Thou hast made us for thyself, O Lord, and our heart is restless until it finds its rest in thee.”
Augustine puts restlessness in perspective. We each have this God shaped hollow inside of us. We so often try fill that hollow with other things. And we remain restless. God is the One that satisfies!