Ever Changing

Watched Freud's Last Session yesterday and I was struck by the last
few sentences Lewis uttered.

My idea of him, of God, keeps changing. He breaks it again and again.
You thought you come to a conclusion, yet He breaks it again and
brings you somewhere else.

That's what I feel God. I thought I knew, but it seems like I didn't know.

When will I know You completely Lord? For I'm so tired and desperate.
Hide yourself no longer from me, surround me with your presence Lord.