We can know all about Him, and still be without Him.
We prefer to follow our own plans and bury that still, small voice which way, 'Be still and know that I am God.' (Psalm 46:10).
To God, however, it seems enough if all we know is He Himself. He doesn't tell us what will happen if we obey Him. So we have to leave the outcome to Him, even if it means our death. NOT knowing, means we abandon our craving for knowledge, for control, to Him, because He wants to bring us to the point when we are content and fulfilled in knowing Him, in Whom are all the treasures of wisdom and knowledge!
'He is no fool who gives up what he cannot keep to gain that which he cannot lose.' Jim Elliot.